remove ability to add constructed inventories to constructed inventories

awx/main/tests/functional/test_inventory_input_constructed.py

@@ -0,0 +1,17 @@
+import pytest
+from awx.main.models import Inventory
+from awx.api.versioning import reverse
+
+
+@pytest.mark.django_db
+def test_constructed_inventory_post(post, organization, admin_user):
+    inventory1 = Inventory.objects.create(name='dummy1', kind='constructed', organization=organization)
+    inventory2 = Inventory.objects.create(name='dummy2', kind='constructed', organization=organization)
+    resp = post(
+        url=reverse('api:inventory_input_inventories', kwargs={'pk': inventory1.id}),
+        data={'id': inventory2.id},
+        user=admin_user,
+        expect=405,
+    )
+    print(resp)
+    assert resp.status_code == 405