fix(curriculum): remove isRequired from russian

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/boo-who.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a77dbc43c33f39daa4429b4f
 title: Boo who
-isRequired: true
 challengeType: 5
 forumTopicId: 16000
 localeTitle: Бу, кто

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/chunky-monkey.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a9bd25c716030ec90084d8a1
 title: Chunky Monkey
-isRequired: true
 challengeType: 5
 forumTopicId: 16005
 localeTitle: Короткая обезьяна

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/confirm-the-ending.russian.md

@@ -1,7 +1,6 @@
 ---
 id: acda2fb1324d9b0fa741e6b5
 title: Confirm the Ending
-isRequired: true
 challengeType: 5
 forumTopicId: 16006
 localeTitle: Подтвердить завершение

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/convert-celsius-to-fahrenheit.russian.md

@@ -2,7 +2,6 @@
 id: 56533eb9ac21ba0edf2244b3
 title: Convert Celsius to Fahrenheit
 challengeType: 1
-isRequired: true
 forumTopicId: 16806
 localeTitle: Преобразование Цельсия в Фаренгейт
 ---

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/factorialize-a-number.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a302f7aae1aa3152a5b413bc
 title: Factorialize a Number
-isRequired: true
 challengeType: 5
 forumTopicId: 16013
 localeTitle: Факториализация номера

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/falsy-bouncer.russian.md

@@ -1,7 +1,6 @@
 ---
 id: adf08ec01beb4f99fc7a68f2
 title: Falsy Bouncer
-isRequired: true
 challengeType: 5
 forumTopicId: 16014
 localeTitle: Фальшивый вышибала

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/find-the-longest-word-in-a-string.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a26cbbe9ad8655a977e1ceb5
 title: Find the Longest Word in a String
-isRequired: true
 challengeType: 5
 forumTopicId: 16015
 localeTitle: Найти самое длинное слово в строке

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/finders-keepers.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a6e40f1041b06c996f7b2406
 title: Finders Keepers
-isRequired: true
 challengeType: 5
 forumTopicId: 16016
 localeTitle: Finders Keepers

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/mutations.russian.md

@@ -1,7 +1,6 @@
 ---
 id: af2170cad53daa0770fabdea
 title: Mutations
-isRequired: true
 challengeType: 5
 forumTopicId: 16025
 localeTitle: Мутации

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/repeat-a-string-repeat-a-string.russian.md

@@ -1,7 +1,6 @@
 ---
 id: afcc8d540bea9ea2669306b6
 title: Repeat a String Repeat a String
-isRequired: true
 challengeType: 5
 forumTopicId: 16041
 localeTitle: Повторить строку Повторить строку

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/return-largest-numbers-in-arrays.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a789b3483989747d63b0e427
 title: Return Largest Numbers in Arrays
-isRequired: true
 challengeType: 5
 forumTopicId: 16042
 localeTitle: Возвращает наибольшие числа в массивах

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/reverse-a-string.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a202eed8fc186c8434cb6d61
 title: Reverse a String
-isRequired: true
 challengeType: 5
 forumTopicId: 16043
 localeTitle: Обратить строку

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/slice-and-splice.russian.md

@@ -1,7 +1,6 @@
 ---
 id: 579e2a2c335b9d72dd32e05c
 title: Slice and Splice
-isRequired: true
 isBeta: true
 challengeType: 5
 forumTopicId: 301148

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/title-case-a-sentence.russian.md

@@ -1,7 +1,6 @@
 ---
 id: ab6137d4e35944e21037b769
 title: Title Case a Sentence
-isRequired: true
 challengeType: 5
 forumTopicId: 16088
 localeTitle: Название Случайное предложение

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/truncate-a-string.russian.md

@@ -1,7 +1,6 @@
 ---
 id: ac6993d51946422351508a41
 title: Truncate a String
-isRequired: true
 challengeType: 5
 forumTopicId: 16089
 localeTitle: Усекать строку

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/basic-algorithm-scripting/where-do-i-belong.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a24c1a4622e3c05097f71d67
 title: Where do I Belong
-isRequired: true
 challengeType: 5
 forumTopicId: 16094
 localeTitle: Где я живу

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/arguments-optional.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a97fd23d9b809dac9921074f
 title: Arguments Optional
-isRequired: true
 challengeType: 5
 forumTopicId: 14271
 localeTitle: Аргументы Дополнительно

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/binary-agents.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a8d97bd4c764e91f9d2bda01
 title: Binary Agents
-isRequired: true
 challengeType: 5
 forumTopicId: 14273
 localeTitle: Двоичные агенты

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/convert-html-entities.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a6b0bb188d873cb2c8729495
 title: Convert HTML Entities
-isRequired: true
 challengeType: 5
 forumTopicId: 16007
 localeTitle: Преобразование HTML-объектов

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/diff-two-arrays.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a5de63ebea8dbee56860f4f2
 title: Diff Two Arrays
-isRequired: true
 challengeType: 5
 forumTopicId: 16008
 localeTitle: Diff Два массива

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/dna-pairing.russian.md

@@ -1,7 +1,6 @@
 ---
 id: afd15382cdfb22c9efe8b7de
 title: DNA Pairing
-isRequired: true
 challengeType: 5
 forumTopicId: 16009
 localeTitle: Связывание ДНК

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/drop-it.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a5deed1811a43193f9f1c841
 title: Drop it
-isRequired: true
 challengeType: 5
 forumTopicId: 16010
 localeTitle: Брось это

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/everything-be-true.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a10d2431ad0c6a099a4b8b52
 title: Everything Be True
-isRequired: true
 challengeType: 5
 forumTopicId: 16011
 localeTitle: Все верно

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/missing-letters.russian.md

@@ -1,7 +1,6 @@
 ---
 id: af7588ade1100bde429baf20
 title: Missing letters
-isRequired: true
 challengeType: 5
 forumTopicId: 16023
 localeTitle: Пропущенные буквы

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/pig-latin.russian.md

@@ -1,7 +1,6 @@
 ---
 id: aa7697ea2477d1316795783b
 title: Pig Latin
-isRequired: true
 challengeType: 5
 forumTopicId: 16039
 localeTitle: Pig Latin

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/search-and-replace.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a0b5010f579e69b815e7c5d6
 title: Search and Replace
-isRequired: true
 challengeType: 5
 forumTopicId: 16045
 localeTitle: Поиск и замена

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/seek-and-destroy.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a39963a4c10bc8b4d4f06d7e
 title: Seek and Destroy
-isRequired: true
 challengeType: 5
 forumTopicId: 16046
 localeTitle: Найти и уничтожить

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/smallest-common-multiple.russian.md

@@ -1,7 +1,6 @@
 ---
 id: ae9defd7acaf69703ab432ea
 title: Smallest Common Multiple
-isRequired: true
 challengeType: 5
 forumTopicId: 16075
 localeTitle: Самый маленький общий множественный

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/sorted-union.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a105e963526e7de52b219be9
 title: Sorted Union
-isRequired: true
 challengeType: 5
 forumTopicId: 16077
 localeTitle: Сортированный союз

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/spinal-tap-case.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a103376db3ba46b2d50db289
 title: Spinal Tap Case
-isRequired: true
 challengeType: 5
 forumTopicId: 16078
 localeTitle: Чехол для спинного диска

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/steamroller.russian.md

@@ -1,7 +1,6 @@
 ---
 id: ab306dbdcc907c7ddfc30830
 title: Steamroller
-isRequired: true
 challengeType: 5
 forumTopicId: 16079
 localeTitle: пробиваться с боями

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/sum-all-numbers-in-a-range.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a3566b1109230028080c9345
 title: Sum All Numbers in a Range
-isRequired: true
 challengeType: 5
 forumTopicId: 16083
 localeTitle: Сумма всех чисел в диапазоне

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/sum-all-odd-fibonacci-numbers.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a5229172f011153519423690
 title: Sum All Odd Fibonacci Numbers
-isRequired: true
 challengeType: 5
 forumTopicId: 16084
 localeTitle: Сумма всех нечетных чисел Фибоначчи

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/sum-all-primes.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a3bfc1673c0526e06d3ac698
 title: Sum All Primes
-isRequired: true
 challengeType: 5
 forumTopicId: 16085
 localeTitle: Сумма всех чисел

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/wherefore-art-thou.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a8e512fbe388ac2f9198f0fa
 title: Wherefore art thou
-isRequired: true
 challengeType: 5
 forumTopicId: 16092
 localeTitle: Итак, ты

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/javascript-algorithms-and-data-structures-projects/caesars-cipher.russian.md

@@ -2,7 +2,6 @@
 id: 56533eb9ac21ba0edf2244e2
 title: Caesars Cipher
 challengeType: 5
-isRequired: true
 forumTopicId: 16003
 localeTitle: Цезарский шифр
 ---

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/javascript-algorithms-and-data-structures-projects/cash-register.russian.md

@@ -1,7 +1,6 @@
 ---
 id: aa2e6f85cab2ab736c9a9b24
 title: Cash Register
-isRequired: true
 challengeType: 5
 forumTopicId: 16012
 localeTitle: Кассовый аппарат

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/javascript-algorithms-and-data-structures-projects/palindrome-checker.russian.md

@@ -1,7 +1,6 @@
 ---
 id: aaa48de84e1ecc7c742e1124
 title: Palindrome Checker
-isRequired: true
 challengeType: 5
 forumTopicId: 16004
 localeTitle: Palindrome Checker

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/javascript-algorithms-and-data-structures-projects/roman-numeral-converter.russian.md

@@ -1,7 +1,6 @@
 ---
 id: a7f4d8f2483413a6ce226cac
 title: Roman Numeral Converter
-isRequired: true
 challengeType: 5
 forumTopicId: 16044
 localeTitle: Конвертер римской цифры

curriculum/challenges/russian/02-javascript-algorithms-and-data-structures/javascript-algorithms-and-data-structures-projects/telephone-number-validator.russian.md

@@ -2,7 +2,6 @@
 id: aff0395860f5d3034dc0bfc9
 title: Telephone Number Validator
 challengeType: 5
-isRequired: true
 forumTopicId: 16090
 localeTitle: Проверка номера телефона
 ---