We already queue the removal of the kernel module in OVS_VSWITCHD_START,
via an ON_EXIT() call. That command is executed in both the success and
failure cases, so it is unnecessary to unload the kernel module in
OVS_VSWITCHD_STOP.
Signed-off-by: Joe Stringer <joestringer@nicira.com> Acked-by: Daniele Di Proietto <diproiettod@vmware.com>