Move test_volume_manage to unversioned path

Just before I2acfe5a28a2533b16565e6ebad5c820e7c3a3967 , the patch
which adds test_volume_manage was merged. So this patch moves the
test into unversioned path again.

Change-Id: I46f14c5dc944110d383ca3f1a395e681d6fb3159
1 file changed