Geo: Remove deprecated wikis_count and repositories_count fields from the public API
We're planning to get rid of these fields in 3 stages. This one should be the last stage.
First stage - https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/6420
Second - https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/6906
Edited by Valery Sizov