remove check_if_is_admin irrelevant method, moved to cancan style permission instead
remove check_if_is_admin irrelevant method, moved to cancan style permission instead

YaleOutdoors/reservations,YaleOutdoors/reservations,YaleOutdoors/reservations,Amalanag/reservations,Amalanag/reservations,YaleSTC/reservations,YaleSTC/reservations,YaleSTC/reservations,Amalanag/reservations