iprutils: Support not physical remove disk.
iprutils: Support not physical remove disk.

The patch is added to support if customer follows the remove sequences but not
remove disk physically. iprutils will add it back automatically.

Signed-off-by: Wen Xiong <3f05dffe35fb464944196f1f9341b62f07cb8996@linux.vnet.ibm.com>

leitao/iprutils