Remove register endpoint

The register endpoint is not used any longer, the invite endpoint is used instead.

gregui/api/urls.py

@@ -2,7 +2,6 @@ from django.urls import re_path, path
 
 from rest_framework.routers import DefaultRouter
 
-from gregui.api.views.guest import GuestRegisterView
 from gregui.api.views.invitation import (
     CheckInvitationView,
     CreateInvitationView,
@@ -15,10 +14,9 @@ router = DefaultRouter(trailing_slash=False)
 
 urlpatterns = router.urls
 urlpatterns += [
-    re_path(r"register/$", GuestRegisterView.as_view(), name="guest-register"),
     re_path(r"roletypes/$", RoleTypeViewSet.as_view(), name="role-types"),
     re_path(r"units/$", UnitsViewSet.as_view(), name="units"),
     path("invited/", InvitedGuestView.as_view(), name="invite"),
     path("invited/<uuid>", CheckInvitationView.as_view()),
-    path("invite/", CreateInvitationView.as_view()),
+    path("invite/", CreateInvitationView.as_view(), name="invite-create"),
 ]