Remove discoverable test from compute tests.

Currently, test_hypervisor_rbac is the only merged test that
has a test for discoverable-related policy action. This patch
removes that test, because it was decided, in another patch [1],
that implementing discoverable policy actions should be postponed,
pending further discussion and changing show_extension in
nova's ExtensionInfoController [2] to only enforce 1 policy action
rather than all discoverable policy actions.

[1] https://review.openstack.org/#/c/431740/
[2] https://github.com/openstack/nova/blob/08653a53a6f7cd1d475a974293c4215be166e292/nova/api/openstack/compute/extension_info.py

Change-Id: I46b911f9542b46881af7ea0f8387f1271551ad8d
diff --git a/patrole_tempest_plugin/tests/api/compute/test_hypervisor_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_hypervisor_rbac.py
index 5f571a5..e495b7d 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_hypervisor_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_hypervisor_rbac.py
@@ -23,33 +23,6 @@
 CONF = config.CONF
 
 
-class HypervisorRbacTest(rbac_base.BaseV2ComputeRbacTest):
-
-    @classmethod
-    def setup_clients(cls):
-        super(HypervisorRbacTest, cls).setup_clients()
-        cls.client = cls.hypervisor_client
-
-    @classmethod
-    def skip_checks(cls):
-        super(HypervisorRbacTest, cls).skip_checks()
-        if not CONF.compute_feature_enabled.api_extensions:
-            raise cls.skipException(
-                '%s skipped as no compute extensions enabled' % cls.__name__)
-
-    def tearDown(self):
-        rbac_utils.switch_role(self, switchToRbacRole=False)
-        super(HypervisorRbacTest, self).tearDown()
-
-    @decorators.idempotent_id('afe5d5ed-c9b9-4e9b-bdc6-20ef9fe86ad8')
-    @rbac_rule_validation.action(
-        service="nova",
-        rule="os_compute_api:limits:discoverable")
-    def test_hypervisor_discoverable(self):
-        rbac_utils.switch_role(self, switchToRbacRole=True)
-        self.extensions_client.list_extensions()
-
-
 class HypervisorAdminRbacTest(rbac_base.BaseV2ComputeAdminRbacTest):
 
     @classmethod