CA-30825: in stop_using_these_vbds_and_call_script(), if one device is deleted while we are trying to pause it, ignore the error and continue to pause other VBDs.
CA-30825: in stop_using_these_vbds_and_call_script(), if one device is deleted while we are trying to pause it, ignore the error and continue to pause other VBDs.

koushikcgit/xcp-rrdd,koushikcgit/xcp-networkd,djs55/xcp-rrdd,sharady/xcp-networkd,koushikcgit/xcp-rrdd,johnelse/xcp-rrdd,djs55/xcp-networkd,robhoes/squeezed,sharady/xcp-networkd,simonjbeaumont/xcp-rrdd,simonjbeaumont/xcp-rrdd,johnelse/xcp-rrdd,koushikcgit/xcp-networkd,koushikcgit/xcp-rrdd,djs55/squeezed,djs55/xcp-networkd,djs55/xcp-rrdd