Inline RSpec/FilePath rubocop rule

Moves RSpec/FilePath cop from gitlab-styles, so we can specify
filepaths to ignore without hardcoding them in the gem.

.rubocop.yml

@@ -3,7 +3,9 @@ inherit_gem:
     - rubocop-default.yml
 
 inherit_from: .rubocop_todo.yml
-require: ./rubocop/rubocop
+require:
+  - ./rubocop/rubocop
+  - rubocop-rspec
 
 AllCops:
   TargetRailsVersion: 4.2
@@ -54,6 +56,13 @@ Style/FrozenStringLiteralComment:
     - 'scripts/**/*'
     - 'spec/**/*'
 
+RSpec/FilePath:
+  Exclude:
+    - 'qa/**/*'
+    - 'spec/javascripts/fixtures/*'
+    - 'ee/spec/javascripts/fixtures/*'
+    - 'spec/requests/api/v3/*'
+
 Naming/FileName:
   ExpectMatchingDefinition: true
   Exclude: