test_share_create_failed check that check_create_complete
raises ResourceInError exception, but there is no necessity
to create whole resource, because if ResourceInError has been
raised, heat tries to recreate stack, thereforce
test_share_create_failed runs 68 seconds. Now test only checks
correct raising ResourceInError in check_create_complete.
Also, test_share_create_unknown_status was refactored in such way.
Change-Id: I5093a49bda00c676ef805dff1ecfb2e2db803a9c