Fix rubocop tests

lib/ci/api/lint.rb

@@ -4,7 +4,6 @@ module Ci
       before { authenticate! }
 
       resources :lint do
-
         post do
           begin
             response = {}
@@ -20,7 +19,7 @@ module Ci
                 status: "syntax is correct"
               }
 
-              stage_builds = @stages.each do |stage|
+              @stages.each do |stage|
                 response["#{stage}"] = @builds.select { |build| build[:stage] == stage }
               end
             else

spec/requests/ci/api/lint_spec.rb

@@ -31,7 +31,7 @@ describe Ci::API::API do
 
     context "with invalid .gitlab_ci.yml content" do
       it "validate content" do
-        post ci_api('/lint'), { private_token: user.private_token, content: 'invalid content'}
+        post ci_api('/lint'), { private_token: user.private_token, content: 'invalid content' }
 
         expect(response).to have_http_status(500)
         expect(json_response['status']).to eq('syntax is incorrect')