Remove skips from bugs marked as fixed.

This removes 3 skips from 3 tests that have the bug associated
with the skip in a fixed state.

Change-Id: I924bf029516ffe91e319e6725e195e511318d271
diff --git a/tempest/tests/boto/test_s3_objects.py b/tempest/tests/boto/test_s3_objects.py
index d50dc45..c735215 100644
--- a/tempest/tests/boto/test_s3_objects.py
+++ b/tempest/tests/boto/test_s3_objects.py
@@ -35,7 +35,6 @@
         cls.os = clients.Manager()
         cls.client = cls.os.s3_client
 
-    @testtools.skip("Skipped until the Bug #1076534 is resolved")
     @attr(type='smoke')
     def test_create_get_delete_object(self):
         # S3 Create, get and delete object
diff --git a/tempest/tests/compute/test_authorization.py b/tempest/tests/compute/test_authorization.py
index c958517..6a72218 100644
--- a/tempest/tests/compute/test_authorization.py
+++ b/tempest/tests/compute/test_authorization.py
@@ -203,7 +203,6 @@
                           self.alt_keypairs_client.get_keypair,
                           self.keypairname)
 
-    @testtools.skip("Skipped until the Bug #1086980 is resolved")
     def test_delete_keypair_of_alt_account_fails(self):
         # A DELETE request for another user's keypair should fail
         self.assertRaises(exceptions.NotFound,
diff --git a/tempest/tests/object_storage/test_object_services.py b/tempest/tests/object_storage/test_object_services.py
index e0a2fbb..76fab0b 100644
--- a/tempest/tests/object_storage/test_object_services.py
+++ b/tempest/tests/object_storage/test_object_services.py
@@ -326,7 +326,6 @@
                 self.assertIn('x-container-read', resp)
                 self.assertEqual(resp['x-container-read'], 'x')
 
-    @testtools.skip('Until Bug 1091669  is resolved.')
     @attr(type='smoke')
     def test_access_public_object_with_another_user_creds(self):
         #Make container public-readable, and access the object