multipath: don't remove dm device on remove uevent
multipath: don't remove dm device on remove uevent

multipathd gets remove uevents for dm devices when the devices have
been removed.  It shouldn't try to actually remove the device itself,
since that has already been done, or it wouldn't have gotten the uevent.

Signed-off-by: Benjamin Marzinski <6b0cc3f70b3cc4298c6f98f9a6292b5ebe631572@redhat.com>

unakatsuo/multipath-tools,vijaychauhan/multipath-tools,unakatsuo/multipath-tools,vijaychauhan/multipath-tools,unakatsuo/multipath-tools