INPUT: Disable the per-TRX OML Link for now

We need a way for the caller to specify which OML link (BTS or TRX) he wants.
diff --git a/openbsc/src/e1_input.c b/openbsc/src/e1_input.c
index baebf2f..916bb56 100644
--- a/openbsc/src/e1_input.c
+++ b/openbsc/src/e1_input.c
@@ -268,10 +268,12 @@
 		return -EINVAL;
 	}
 
+#if 0
 	/* Check for TRX-specific OML link first */
 	if (msg->trx->oml_link)
 		sign_link = msg->trx->oml_link;
 	else
+#endif
 		sign_link = msg->trx->bts->oml_link;
 
 	e1i_ts = sign_link->ts;