Geo: Do not enqueue repository removal for projects that does not have repository

There is a possibility that a project does not have repository or wiki on a secondary node and we should not enqueue them for removal avoiding an unnecessarily increase of the Sidekiq load on large instances.

mentioned in merge request !2650 (merged)

changed title from Geo: Doe not enqueue repository removal for projects that does not have repository to Geo: Do not enqueue repository removal for projects that does not have repository

closed via merge request !2650 (merged)

mentioned in commit 64c15df3

mentioned in commit 4a990576