Changes ci/lints controller to use authorize before action

Also includes a comment on Ci::Config regarding that's going to be
override by EE

app/controllers/projects/ci/lints_controller.rb

 class Projects::Ci::LintsController < Projects::ApplicationController
-  before_action :ensure_user_access
+  before_action :authorize_create_pipeline!
 
   def show
   end
@@ -24,8 +24,4 @@ class Projects::Ci::LintsController < Projects::ApplicationController
   def yaml_processor_options
     { project: @project, sha: project.repository.commit.sha }
   end
-
-  def ensure_user_access
-    return access_denied! unless can?(current_user, :create_pipeline, @project)
-  end
 end