Fix all Style/RedundantReturn rubocop issues

.rubocop_todo.yml

@@ -475,16 +475,6 @@ Style/RedundantParentheses:
     - 'spec/features/proposals_spec.rb'
     - 'spec/models/debate_spec.rb'
 
-# Offense count: 5
-# Cop supports --auto-correct.
-# Configuration parameters: AllowMultipleReturnValues.
-Style/RedundantReturn:
-  Exclude:
-    - 'app/models/ahoy/data_source.rb'
-    - 'app/models/verification/management/document.rb'
-    - 'lib/capistrano/template.rb'
-    - 'lib/census_api.rb'
-
 # Offense count: 49
 # Cop supports --auto-correct.
 Style/RedundantSelf:

app/models/ahoy/data_source.rb

@@ -27,7 +27,7 @@ module Ahoy
         end
       end
 
-      return data
+      data
     end
 
     private

app/models/verification/management/document.rb

@@ -25,9 +25,9 @@ class Verification::Management::Document
   def valid_age?(response)
     if under_age?(response)
       errors.add(:age, true)
-      return false
+      false
     else
-      return true
+      true
     end
   end