log: remove an fprintf "not configured" error message in setup_logging().

Now that we exit early when !logging_initialized, this
can actually not happen anymore anyways: When logging is
initialized, it was also properly configured.

Michael

src/log.c

@@ -292,9 +292,6 @@ void shutdown_logging (void)
                 close_log_file ();
         } else if (config.syslog) {
                 closelog ();
-        } else {
-                fprintf (stderr, "error - shutdown_logging called while "
-                         " logging not configured yet\n");
         }
 
         logging_initialized = FALSE;