Remove resize-revert workaround for bug 924371

Change I12364e7c enables the resize tests again and bug 924371 has been
fixed for a long time, so remove the workaround in the
test_resize_server_revert test case.

Related-Bug: #924371

Change-Id: Ic143f8fa87b8ef4c3a23324bb148171a3f22c073
Merge "Remove resize-revert workaround for bug 924371"