Revert "Fix OpenID spec failure that assumed current_sign_in_at would be set"
Revert "Fix OpenID spec failure that assumed current_sign_in_at would be set"

This reverts commit 73f448e589f46865140412754a9c97df52dc16c7.

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