Consider removing Groups::EpicIssuesController#index action as it's no longer used.
This controller executes more than 100 SQL queries, the maximum number of
queries allowed as per MR https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/16466.
The number of queries should be reduced to less than 100 and the corresponding
whitelisted sections of code (Gitlab::QueryLimiting.whitelist('...')
) should
be removed.
Update 2020-03-26
See #21031 (comment 538887047)
We no longer receive any traffic to this controller action (Kibana chart). This is because retrieve issues on an epic through GraphQL now. We should consider removing it.
Edited by John Hope