remove the rake task `gitlab:sidekiq:drop_post_receive`
remove the rake task `gitlab:sidekiq:drop_post_receive`

This task is no longer being used and is not documented.

dreampet/gitlab,axilleas/gitlabhq,iiet/iiet-git,iiet/iiet-git,mmkassem/gitlabhq,jirutka/gitlabhq,stoplightio/gitlabhq,dreampet/gitlab,stoplightio/gitlabhq,axilleas/gitlabhq,dreampet/gitlab,jirutka/gitlabhq,iiet/iiet-git,dreampet/gitlab,mmkassem/gitlabhq,jirutka/gitlabhq,jirutka/gitlabhq,mmkassem/gitlabhq,mmkassem/gitlabhq,axilleas/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,axilleas/gitlabhq