Remove unused method Project#all_labels
Remove unused method Project#all_labels

darkrasid/gitlabhq,axilleas/gitlabhq,htve/GitlabForChinese,openwide-java/gitlabhq,jirutka/gitlabhq,stoplightio/gitlabhq,openwide-java/gitlabhq,jirutka/gitlabhq,dreampet/gitlab,axilleas/gitlabhq,stoplightio/gitlabhq,htve/GitlabForChinese,mmkassem/gitlabhq,daiyu/gitlab-zh,iiet/iiet-git,daiyu/gitlab-zh,htve/GitlabForChinese,daiyu/gitlab-zh,openwide-java/gitlabhq,iiet/iiet-git,dplarson/gitlabhq,daiyu/gitlab-zh,stoplightio/gitlabhq,stoplightio/gitlabhq,LUMC/gitlabhq,openwide-java/gitlabhq,LUMC/gitlabhq,t-zuehlsdorff/gitlabhq,darkrasid/gitlabhq,dreampet/gitlab,dplarson/gitlabhq,t-zuehlsdorff/gitlabhq,LUMC/gitlabhq,iiet/iiet-git,jirutka/gitlabhq,dplarson/gitlabhq,dreampet/gitlab,mmkassem/gitlabhq,htve/GitlabForChinese,dplarson/gitlabhq,darkrasid/gitlabhq,iiet/iiet-git,jirutka/gitlabhq,darkrasid/gitlabhq,axilleas/gitlabhq,mmkassem/gitlabhq,t-zuehlsdorff/gitlabhq,dreampet/gitlab,axilleas/gitlabhq,LUMC/gitlabhq,t-zuehlsdorff/gitlabhq,mmkassem/gitlabhq