fix an assert on startup when the disk is full and you're logging to a file

svn:r3204

src/common/log.c

@@ -393,9 +393,7 @@ int add_file_log(int loglevelMin, int loglevelMax, const char *filename)
   add_stream_log(loglevelMin, loglevelMax, filename, f);
   logfiles->needs_close = 1;
   if (log_tor_version(logfiles, 0) < 0) {
-    logfile_t *victim = logfiles;
-    logfiles = victim->next;
-    delete_log(victim);
+    delete_log(logfiles);
   }
   return 0;
 }