Removed unrelated section about lambdas (#18734)

client/src/pages/guide/english/ruby/ruby-arrays/index.md

@@ -41,11 +41,7 @@ You can check the last element of an array with the `last` method:
 mixed_array.last # true
 ```
 
-#### Ruby Lambda
-A lambda is also commonly referred to as an anonymous function. To create a lambda in Ruby, you can use the following syntax:
-```ruby
-lambda = lambda {}
-```
+
 
 #### More Information:
 <a href='https://ruby-doc.org/core-2.4.2/Array.html' target='_blank' rel='nofollow'>Ruby array documentation</a>