Fix Style/ParenthesesAroundCondition rubocop issues

.rubocop_todo.yml

@@ -625,15 +625,6 @@ Style/ParallelAssignment:
     - 'lib/active_model/dates.rb'
     - 'spec/support/common_actions.rb'
 
-# Offense count: 3
-# Cop supports --auto-correct.
-# Configuration parameters: AllowSafeAssignment.
-Style/ParenthesesAroundCondition:
-  Exclude:
-    - 'app/controllers/proposals_controller.rb'
-    - 'app/models/debate.rb'
-    - 'app/models/proposal.rb'
-
 # Offense count: 11
 # Configuration parameters: NamePrefix, NamePrefixBlacklist, NameWhitelist.
 # NamePrefix: is_, has_, have_

app/models/debate.rb

@@ -88,7 +88,7 @@ class Debate < ActiveRecord::Base
 
   def register_vote(user, vote_value)
     if votable_by?(user)
-      Debate.increment_counter(:cached_anonymous_votes_total, id) if (user.unverified? && !user.voted_for?(self))
+      Debate.increment_counter(:cached_anonymous_votes_total, id) if user.unverified? && !user.voted_for?(self)
       vote_by(voter: user, vote: vote_value)
     end
   end

app/models/proposal.rb

@@ -88,7 +88,7 @@ class Proposal < ActiveRecord::Base
   def self.search_by_code(terms)
     matched_code = match_code(terms)
     results = where(id: matched_code[1]) if matched_code
-    return results if (results.present? && results.first.code == terms)
+    return results if results.present? && results.first.code == terms
   end
 
   def self.match_code(terms)