Fix unused variable warning for guc-file.l
@@ -498,8 +498,6 @@ ParseConfigFile(const char *config_file, const char *calling_file,
* An include directive isn't a variable and should be processed
* immediately.
*/
- unsigned int save_ConfigFileLineno = ConfigFileLineno;
-
if (!ParseConfigFile(opt_value, config_file,
depth + 1, context, elevel,
head_p, tail_p))
