Updated openstack/openstack
Project: openstack/nova  921e01cd217ea84f2eeec187cb42c69751381916

Merge BadRequest tests of v2 quota_sets API

In test_quotas, there are BadRequest tests of v2 quota_sets API.
Most parts of them are duplicated.
This patch merges them for the readability and clarifying their purposes.

Change-Id: I4313b2a80819260e9363f457ba271689308b145f