Switch Neutron RBAC flag in testing

Neutron bobcat release has enabled the RBAC new defaults
by default. With the latest release of Neutron have new
defaults enable and devstack (depends on) made NEUTRON_ENFORCE_SCOPE
flag to True by default. Tempst need to switch the flag too so that
we test new RBAC by default and old RBAC in old RBAC job.

Depends-On: https://review.opendev.org/c/openstack/devstack/+/899306
Change-Id: I81c4dc11b16f27d6f074e84ff54363e7b415e5b3

zuul.d/integrated-gate.yaml

@@ -396,11 +396,6 @@
     parent: tempest-full-py3
     description: |
       This job runs the Tempest tests with scope and new defaults enabled.
-    # TODO: remove this once https://review.opendev.org/c/openstack/neutron-lib/+/864213
-    # fix is released in neutron-lib
-    required-projects:
-      - openstack/neutron-lib
-      - openstack/neutron
     vars:
       devstack_localrc:
         # Enabeling the scope and new defaults for services.
@@ -410,10 +405,9 @@
         # Keystone policies are changed to work for both system as well as
         # for project scoped, we need to keep scope check disable for
         # keystone.
-        # Nova and Glance have enabled the new defaults and scope by default
-        # in devstack.
+        # Nova, Glance, and Neutron have enabled the new defaults and scope
+        # by default in devstack.
         CINDER_ENFORCE_SCOPE: true
-        NEUTRON_ENFORCE_SCOPE: true
         PLACEMENT_ENFORCE_SCOPE: true
 
 - job:
@@ -421,12 +415,14 @@
     parent: tempest-all
     description: |
       Integration test that runs all tests on RBAC old defaults.
+    vars:
       devstack_localrc:
-        # NOTE(gmann): Nova and Glance have enabled the new defaults and scope
-        # by default in devstack so we need some jobs keep testing the old
-        # defaults until they are removed from service side.
+        # NOTE(gmann): Nova, Glance, and Neutron have enabled the new defaults
+        # and scope by default in devstack so we need some jobs keep testing
+        # the old defaults until they are removed from service side.
         NOVA_ENFORCE_SCOPE: false
         GLANCE_ENFORCE_SCOPE: false
+        NEUTRON_ENFORCE_SCOPE: false
 
 - project-template:
     name: integrated-gate-networking