do not assert on sending to an offline peer for now
do not assert on sending to an offline peer for now

Change-Id: I881d8462607745b049bea01dc702fa16b4540b72
Signed-off-by: Alessandro Salvatori <8a0c874bf01335702b42d6983c4d9b3eb550c634@gmail.com>

opendaylight/opflex,opendaylight/opflex,mhrobinson/opflex,opendaylight/opflex,mhrobinson/opflex,mhrobinson/opflex,mhrobinson/opflex,opendaylight/opflex