Remove testing delegate

app/controllers/projects/pipelines_controller.rb

@@ -22,10 +22,10 @@ class Projects::PipelinesController < Projects::ApplicationController
       pipeline = Ci::CreatePipelineService.new(project, current_user, create_params).execute
       redirect_to namespace_project_pipeline_path(project.namespace, project, pipeline)
     rescue ArgumentError => e
-      @error = e.message
+      flash[:alert] = e.message
       render 'new'
     rescue
-      @error = 'Undefined error'
+      flash[:alert] = 'Undefined error'
       render 'new'
     end
   end

spec/models/ci/commit_spec.rb

@@ -10,7 +10,6 @@ describe Ci::Commit, models: true do
   it { is_expected.to have_many(:builds) }
   it { is_expected.to validate_presence_of :sha }
   it { is_expected.to validate_presence_of :status }
-  it { is_expected.to delegate_method(:stages).to(:statuses) }
 
   it { is_expected.to respond_to :git_author_name }
   it { is_expected.to respond_to :git_author_email }