Remove unused GSM_PAGING_OOM

Change-Id: Ie5883953f48d11ec498f47c30ab4201bb956368c
diff --git a/include/osmocom/msc/gsm_data_shared.h b/include/osmocom/msc/gsm_data_shared.h
index 32c336b..f71e92b 100644
--- a/include/osmocom/msc/gsm_data_shared.h
+++ b/include/osmocom/msc/gsm_data_shared.h
@@ -36,7 +36,6 @@
 enum gsm_paging_event {
 	GSM_PAGING_SUCCEEDED,
 	GSM_PAGING_EXPIRED,
-	GSM_PAGING_OOM,
 	GSM_PAGING_BUSY,
 };
 
diff --git a/src/libmsc/gsm_04_11.c b/src/libmsc/gsm_04_11.c
index 077c8d8..8d9169b 100644
--- a/src/libmsc/gsm_04_11.c
+++ b/src/libmsc/gsm_04_11.c
@@ -1099,7 +1099,6 @@
 		gsm411_send_sms(conn, sms);
 		break;
 	case GSM_PAGING_EXPIRED:
-	case GSM_PAGING_OOM:
 	case GSM_PAGING_BUSY:
 		send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, event);
 		sms_free(sms);
diff --git a/src/libmsc/silent_call.c b/src/libmsc/silent_call.c
index 1ea2305..9888894 100644
--- a/src/libmsc/silent_call.c
+++ b/src/libmsc/silent_call.c
@@ -63,7 +63,6 @@
 		break;
 	case GSM_PAGING_EXPIRED:
 	case GSM_PAGING_BUSY:
-	case GSM_PAGING_OOM:
 		DEBUGP(DLSMS, "expired\n");
 		osmo_signal_dispatch(SS_SCALL, S_SCALL_EXPIRED, &sigdata);
 		break;
diff --git a/src/libmsc/sms_queue.c b/src/libmsc/sms_queue.c
index ed11123..252e529 100644
--- a/src/libmsc/sms_queue.c
+++ b/src/libmsc/sms_queue.c
@@ -511,8 +511,6 @@
 		case GSM_PAGING_EXPIRED:
 			sms_pending_failed(pending, 1);
 			break;
-
-		case GSM_PAGING_OOM:
 		case GSM_PAGING_BUSY:
 			network->sms_queue->pending -= 1;
 			sms_pending_free(pending);