demote a warning log message to debug

src/server/ua_server_worker.c

@@ -226,9 +226,9 @@ processRepeatedJobs(UA_Server *server, UA_DateTime current) {
         processJob(server, &rj->job);
         /* See if the current job was deleted during processJob. That means the
            le_next field of the previous repeated job (could also be the list
-           header) does no longer point to the current repeated job */
+           head) does no longer point to the current repeated job */
         if((void*)*previousNext != (void*)rj) {
-            UA_LOG_WARNING(server->config.logger, UA_LOGCATEGORY_SERVER,
+            UA_LOG_DEBUG(server->config.logger, UA_LOGCATEGORY_SERVER,
                          "The current repeated job removed itself");
             continue;
         }