fix(client): remove JS comments from user code for tests (#41873)

* Removes comments in js challanges by default

* fix local-scope-and-functions test regex

* fix all languages

* revert language changes

* removed unnecessary removeJSComments from challenges

* fix challanges in other languages

* removed removeJSComments from all challanges

curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-data-structures/copy-an-array-with-the-spread-operator.md

@@ -65,7 +65,7 @@ assert.deepEqual(copyMachine(['it works'], 3), [
 The `copyMachine` function should utilize the `spread operator` with array `arr`
 
 ```js
-assert(__helpers.removeJSComments(code).match(/\.\.\.arr/));
+assert(code.match(/\.\.\.arr/));
 ```
 
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