Remove EnrolmentManager class
Remove EnrolmentManager class

EnrolmentManager was not used (I think it was intended to replace the ShiftHelperManager)

christophmeissner/volunteer_planner,volunteer-planner/volunteer_planner,alper/volunteer_planner,christophmeissner/volunteer_planner,coders4help/volunteer_planner,pitpalme/volunteer_planner,flindenberg/volunteer_planner,pitpalme/volunteer_planner,alper/volunteer_planner,coders4help/volunteer_planner,klinger/volunteer_planner,pitpalme/volunteer_planner,klinger/volunteer_planner,christophmeissner/volunteer_planner,volunteer-planner/volunteer_planner,christophmeissner/volunteer_planner,volunteer-planner/volunteer_planner,alper/volunteer_planner,coders4help/volunteer_planner,flindenberg/volunteer_planner,klinger/volunteer_planner,flindenberg/volunteer_planner,klinger/volunteer_planner,coders4help/volunteer_planner,volunteer-planner/volunteer_planner,pitpalme/volunteer_planner