drop unused gsm_network->handover.active

gsm_network contains an int handover.active which is always zero. Drop it.

There is real handover code coming up soon, one part of this is to avoid
confusion.

The internal MNCC code queried it to decide whether to MNCC_BRIDGE or proxy RTP
(MNCC_FRAME_RECV). Since RTP is being handled by osmo-mgw since forever, drop
that entire condition from mncc_builtin.

Change-Id: Ie16e718266882588b38297121364ca0b7fdfe948
2 files changed