Remove deprecated enable_rbac option

Remove deprecated configuration option [patrole].enable_rbac

Reference:
https: //docs.openstack.org/releasenotes/patrole/v0.4.0.html#deprecation-notes
Change-Id: Icb575812d4a921d69f4cf472e6bad329043c62bd
diff --git a/README.md b/README.md
index 4bae9e6..d9cf2e1 100644
--- a/README.md
+++ b/README.md
@@ -71,8 +71,6 @@
 
 After comfiguring tempmest.conf as per tempest and Patrole requirements, please make below changes too in the patrole section of tempest.conf:
 
-    enable_rbac must be true.
-
     test_custom_requirements must be true if you want to run tests against a `custom_requirements_file` which defines RBAC requirements.
 
     custom_requirements_file must be absolute path of file path of the YAML file that defines your RBAC requirements.
diff --git a/README.rst b/README.rst
index c0e0c8f..f8f00b0 100644
--- a/README.rst
+++ b/README.rst
@@ -79,8 +79,6 @@
 
 After comfiguring tempmest.conf as per tempest and Patrole requirements, please make below changes too in the patrole section of tempest.conf:
 
-    enable_rbac must be true.
-
     test_custom_requirements must be true if you want to run tests against a `custom_requirements_file` which defines RBAC requirements.
 
     custom_requirements_file must be absolute path of file path of the YAML file that defines your RBAC requirements.
diff --git a/tungsten_tempest_plugin/tests/api/contrail/rbac_base.py b/tungsten_tempest_plugin/tests/api/contrail/rbac_base.py
index 527eb97..868631a 100644
--- a/tungsten_tempest_plugin/tests/api/contrail/rbac_base.py
+++ b/tungsten_tempest_plugin/tests/api/contrail/rbac_base.py
@@ -121,9 +121,6 @@
         super(BaseContrailTest, cls).skip_checks()
         if not CONF.service_available.contrail:
             raise cls.skipException("Contrail support is required")
-        if not CONF.patrole.enable_rbac:
-            raise cls.skipException(
-                "%s skipped as RBAC Flag not enabled" % cls.__name__)
         if CONF.auth.tempest_roles != ['admin']:
             raise cls.skipException(
                 "%s skipped because tempest roles is not admin" % cls.__name__)