refactor(projects): remove project membership access model

apps/projects/api/urls.py

@@ -1,16 +1,12 @@
-from django.urls import path, include
-from rest_framework.routers import DefaultRouter
-
-from apps.projects.api.views import (
-    ProjectViewSet,
-    ProjectMembershipViewSet,
-)
+from django.urls import path, include
+from rest_framework.routers import DefaultRouter
+
+from apps.projects.api.views import ProjectViewSet
 
 app_name = "projects"
 
 router = DefaultRouter()
 router.register(r"projects", ProjectViewSet, basename="project")
-router.register(r"memberships", ProjectMembershipViewSet, basename="membership")
 
 urlpatterns = [
     path("", include(router.urls)),