remove extra class qualifications from class methods in World.h
remove extra class qualifications from class methods in World.h

ccdevnet/openc2e,bdonlan/openc2e,crystalline/openc2e,ccdevnet/openc2e,bdonlan/openc2e,crystalline/openc2e,bdonlan/openc2e,ccdevnet/openc2e,ccdevnet/openc2e,ccdevnet/openc2e,crystalline/openc2e,crystalline/openc2e,ccdevnet/openc2e,crystalline/openc2e,bdonlan/openc2e