Remove leftover API helper for removed CI API
Remove leftover API helper for removed CI API

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