Controller Projects::HooksController#index executes more than 100 SQL queries

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 allowlisted sections of code (Gitlab::QueryLimiting.disable!('...') or disable_query_limiting) should be removed.

Dashboard: https://dashboards.gitlab.net/d/stage-groups-ecosystem/stage-groups-group-dashboard-create-ecosystem?orgId=1