remove prometheus sampler
remove prometheus sampler

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