TT#58050 fix refcount bug

Every packet_stream gets a send_timer allocated, but the teardown
routine skips the refcount decrease for fallback RTCP streams (when
rtcp-mux is in use), resulting in mem leak

fixes #753

Change-Id: Ib3a4ef8a81135918f08e28e127e4bb557b8ea05d

daemon/call.c

@@ -2161,6 +2161,8 @@ void call_destroy(struct call *c) {
 			for (o = md->streams.head; o; o = o->next) {
 				ps = o->data;
 
+				send_timer_put(&ps->send_timer);
+
 				if (PS_ISSET(ps, FALLBACK_RTCP))
 					continue;
 
@@ -2180,7 +2182,6 @@ void call_destroy(struct call *c) {
 						rtpe_now.tv_sec - atomic64_get(&ps->last_packet));
 
 				statistics_update_totals(ps);
-				send_timer_put(&ps->send_timer);
 
 			}