Revert "Adds certificate tests for keystone v3"

The tests caused technical issues on the stable/icheouse
gate with stable/havana -> stable/icehouse grenade/upgrade jobs.

Please resubmit the patch after the issue is resolved.

This reverts commit 1b560b239be149f8b8b3c99b723875a2c81ac85e.

Change-Id: I0ced519b68ef1e55a0f56af58a518d77f18b2adc
diff --git a/tempest/api/identity/admin/v3/test_certificates.py b/tempest/api/identity/admin/v3/test_certificates.py
deleted file mode 100644
index a53ee0a..0000000
--- a/tempest/api/identity/admin/v3/test_certificates.py
+++ /dev/null
@@ -1,43 +0,0 @@
-# Copyright 2014 OpenStack Foundation
-# All Rights Reserved.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-from tempest.api.identity import base
-from tempest import test
-
-
-class CertificatesV3TestJSON(base.BaseIdentityV3AdminTest):
-    _interface = 'json'
-
-    def _verify_response(self, expected, actual):
-        missing_tags = [t for t in expected if t not in actual]
-        self.assertEqual(0, len(missing_tags),
-                         "Failed to fetch expected tag"
-                         "in the certificate: %s" % ','.join(missing_tags))
-
-    @test.attr(type='smoke')
-    def test_get_ca_certificate(self):
-        # Verify ca certificate chain
-        expected_tags = ['BEGIN CERTIFICATE', 'END CERTIFICATE']
-        resp, certificate = self.client.get_ca_certificate()
-        self.assertEqual(200, resp.status)
-        self._verify_response(expected_tags, certificate)
-
-    @test.attr(type='smoke')
-    def test_get_certificates(self):
-        # Verify signing certificates
-        expected_tags = ['Certificate', 'BEGIN CERTIFICATE', 'END CERTIFICATE']
-        resp, certificates = self.client.get_certificates()
-        self.assertEqual(200, resp.status)
-        self._verify_response(expected_tags, certificates)
diff --git a/tempest/services/identity/v3/json/identity_client.py b/tempest/services/identity/v3/json/identity_client.py
index 73e52a0..6829333 100644
--- a/tempest/services/identity/v3/json/identity_client.py
+++ b/tempest/services/identity/v3/json/identity_client.py
@@ -450,16 +450,6 @@
                                % (trust_id, role_id))
         return resp, body
 
-    def get_ca_certificate(self):
-        """GET ca certificate chain."""
-        resp, body = self.get("OS-SIMPLE-CERT/ca")
-        return resp, body
-
-    def get_certificates(self):
-        """GET signing certificates used to sign tokens."""
-        resp, body = self.get("OS-SIMPLE-CERT/certificates")
-        return resp, body
-
 
 class V3TokenClientJSON(rest_client.RestClient):