Add fails_on_rcs attr for tests that fail againt Riak CS

Author: shino

s3tests/functional/test_s3.py

@@ -4507,7 +4507,6 @@ def test_object_copy_canned_acl():
 @attr(resource='object')
 @attr(method='put')
 @attr(operation='copy object and retain metadata')
-@attr('fails_on_rcs')
 def test_object_copy_retaining_metadata():
     for size in [3, 1024 * 1024]:
         bucket = get_new_bucket()
@@ -4528,7 +4527,6 @@ def test_object_copy_retaining_metadata():
 @attr(resource='object')
 @attr(method='put')
 @attr(operation='copy object and replace metadata')
-@attr('fails_on_rcs')
 def test_object_copy_replacing_metadata():
     for size in [3, 1024 * 1024]:
         bucket = get_new_bucket()
@@ -4680,7 +4678,6 @@ def _check_upload_multipart_resend(bucket, key, objlen, resend_parts):
 @attr(method='put')
 @attr(operation='complete multi-part upload')
 @attr(assertion='successful')
-@attr('fails_on_rcs')
 def test_multipart_upload_resend_part():
     bucket = get_new_bucket()
     key="mymultipart"