Revert cache for events

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/1014#note_1661322

Milestone changed to 7.13

/cc @DouweM @haynes

Reassigned to @vsizov

@DouweM or/and @rspeicher Please review it. Some details here - https://gitlab.com/gitlab-org/gitlab-ce/issues/2054 and here - https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/911#note_1551058

Reassigned to @rspeicher

Reassigned to @vsizov

Added 7 commits:

• fab4de16...db69c732 - 6 commits from branch master
• 4466f25d - revert cache for events

@vsizov This looked ok code-wise. I hesitated merging until I could make sure you were ready for it to go into the patch release. If you want to merge it yourself, it looks good to me.

@rspeicher Thanks

mentioned in commit 8a539e58

Status changed to merged