deleteVolume
static void deleteVolume(string imageFile, string mountPoint,
deleteVolume(testFile, testMountPoint);
deleteVolume(testVolumeImage, testMountPoint);
deleteVolume(testFile1, testMountPoint);
deleteVolume(testFile1, testMountPoint, false);
deleteVolume(testFile1, testMountPoint, false);
deleteVolume(testFile1, testMountPoint, false);