Revert "Merge branch 'grpc-1.2.2' into 'master'"
Revert "Merge branch 'grpc-1.2.2' into 'master'"

This reverts merge request !10589
t-zuehlsdorff/gitlabhq,mmkassem/gitlabhq,iiet/iiet-git,darkrasid/gitlabhq,jirutka/gitlabhq,iiet/iiet-git,darkrasid/gitlabhq,stoplightio/gitlabhq,htve/GitlabForChinese,jirutka/gitlabhq,dreampet/gitlab,stoplightio/gitlabhq,darkrasid/gitlabhq,jirutka/gitlabhq,darkrasid/gitlabhq,iiet/iiet-git,dplarson/gitlabhq,iiet/iiet-git,axilleas/gitlabhq,htve/GitlabForChinese,axilleas/gitlabhq,stoplightio/gitlabhq,htve/GitlabForChinese,htve/GitlabForChinese,t-zuehlsdorff/gitlabhq,mmkassem/gitlabhq,dplarson/gitlabhq,jirutka/gitlabhq,mmkassem/gitlabhq,axilleas/gitlabhq,mmkassem/gitlabhq,dreampet/gitlab,dplarson/gitlabhq,axilleas/gitlabhq,dplarson/gitlabhq,dreampet/gitlab,t-zuehlsdorff/gitlabhq,t-zuehlsdorff/gitlabhq,stoplightio/gitlabhq,dreampet/gitlab