Remove API changes for assigning group runner to project
Remove API changes for assigning group runner to project

Since we are going to handle the API stuff later we can just leave this as error case since the model validations will stop this

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