qeth: remove unnecessary support ckeck in sysfs route6

Removing this check improves usability because you do not have to
set the device online to initially set ipv6 routing option.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
1 file changed