Revert "libbsc: Log if a channel is freed with lchan->state != LCHAN_S_NONE"

In case of a failed channel we still want the channel to not be
re-allocated right away but keep it closed/unused for (T3109 + T311).

rsl_rx_rf_chan_rel_ack has a check to not set the channel to S_NONE in
case the channel is in the error state. Add the camp Harald added a timer
to set the channel back to the none state in case the RF Channel Release
is not acked.

This reverts commit fc462dd59ee4772f06c9f2477b36b3f166a8e74b.
diff --git a/openbsc/src/libbsc/chan_alloc.c b/openbsc/src/libbsc/chan_alloc.c
index 6f4fe20..c0bdc1b 100644
--- a/openbsc/src/libbsc/chan_alloc.c
+++ b/openbsc/src/libbsc/chan_alloc.c
@@ -299,10 +299,6 @@
 	sig.type = lchan->type;
 	lchan->type = GSM_LCHAN_NONE;
 
-	if (lchan->state != LCHAN_S_NONE) {
-		LOGP(DRLL, LOGL_NOTICE, "Freeing lchan with state %s - setting to NONE\n", gsm_lchans_name(lchan->state));
-		lchan->state = LCHAN_S_NONE;
-	}
 
 	if (lchan->conn) {
 		struct lchan_signal_data sig;