Revert "zebra: clean up client routes when client goes away"

This reverts commit af56d404cd56d94ad3b2ec3f159650eb72baef0a,
which was accidentally duplicating functionality from commit
2ea1ab1 "zebra: ZEBRA_HELLO and mopping up routes (BZ#448)"

Conflicts:

	zebra/zebra_rib.c

Signed-off-by: David Lamparter <equinox@diac24.net>
3 files changed