Rails AccessTokenValidationService noise
In the unicorn logs, we are seeing a lot of these warnings:
/opt/gitlab/embedded/service/gitlab-rails/lib/api/api_guard.rb:51: warning: toplevel constant INSUFFICIENT_SCOPE referenced by AccessTokenValidationService::INSUFFICIENT_SCOPE
/opt/gitlab/embedded/service/gitlab-rails/lib/api/api_guard.rb:54: warning: toplevel constant EXPIRED referenced by AccessTokenValidationService::EXPIRED
/opt/gitlab/embedded/service/gitlab-rails/lib/api/api_guard.rb:57: warning: toplevel constant REVOKED referenced by AccessTokenValidationService::REVOKED
/opt/gitlab/embedded/service/gitlab-rails/lib/api/api_guard.rb:60: warning: toplevel constant VALID referenced by AccessTokenValidationService::VALID