qcacld-3.0: Fix return type for umac_stop_complete_cb

Fix return type for umac_stop_complete_cb to match with the return type of
sys_rsp_cb declaration.

Change-Id: I06c67bf04ead784054b62de25f127d805082c425
CRs-Fixed: 2674554

core/mac/src/sys/common/src/wlan_qct_sys.c

@@ -57,19 +57,17 @@ QDF_STATUS sys_build_message_header(SYS_MSG_ID msg_id,
  * Return: none
  */
 #ifdef QDF_ENABLE_TRACING
-static QDF_STATUS umac_stop_complete_cb(void *user_data)
+static void umac_stop_complete_cb(void *user_data)
 {
 	qdf_event_t *stop_evt = (qdf_event_t *) user_data;
 	QDF_STATUS qdf_status = qdf_event_set(stop_evt);
 
 	QDF_ASSERT(QDF_IS_STATUS_SUCCESS(qdf_status));
-
-	return QDF_STATUS_SUCCESS;
 }
 #else
 static QDF_STATUS umac_stop_complete_cb(void *user_data)
 {
-	return QDF_STATUS_SUCCESS;
+	return;
 }
 #endif