Merge branch 'ce-reduce-diff-with-ce-in-lfs_request' into 'master'

Make LfsRequest EE-compatible

See merge request gitlab-org/gitlab-ce!23903

app/controllers/concerns/lfs_request.rb

@@ -94,6 +94,7 @@ module LfsRequest
   def lfs_upload_access?
     return false unless project.lfs_enabled?
     return false unless has_authentication_ability?(:push_code)
+    return false if limit_exceeded?
 
     lfs_deploy_token? || can?(user, :push_code, project)
   end
@@ -121,4 +122,9 @@ module LfsRequest
   def has_authentication_ability?(capability)
     (authentication_abilities || []).include?(capability)
   end
+
+  # Overriden in EE
+  def limit_exceeded?
+    false
+  end
 end