remove any reference to 'struct gsm_bts_link'
diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h
index 34d1118..47f194f 100644
--- a/openbsc/include/openbsc/gsm_data.h
+++ b/openbsc/include/openbsc/gsm_data.h
@@ -105,11 +105,6 @@
 	} while(0);
 
 
-/* communications link with a BTS */
-struct gsm_bts_link {
-	struct gsm_bts *bts;
-};
-
 /* Real authentication information containing Ki */
 enum gsm_auth_algo {
 	AUTH_ALGO_NONE,
diff --git a/openbsc/src/gsm_04_80.c b/openbsc/src/gsm_04_80.c
index 2112e3f..ef10b17 100644
--- a/openbsc/src/gsm_04_80.c
+++ b/openbsc/src/gsm_04_80.c
@@ -257,7 +257,6 @@
 	if (((strlen(response_text) * 7) % 8) != 0)
 		response_len += 1;
 
-	msg->bts_link = in_msg->bts_link;
 	msg->lchan = in_msg->lchan;
 
 	/* First put the payload text into the message */
@@ -304,7 +303,6 @@
 	struct msgb *msg = gsm48_msgb_alloc();
 	struct gsm48_hdr *gh;
 
-	msg->bts_link = in_msg->bts_link;
 	msg->lchan = in_msg->lchan;
 
 	/* First insert the problem code */