Fix double declaration for check_ok() in pg_upgrade.h

Author: Pavel Borisov <[email protected]>

Author: petere

src/bin/pg_upgrade/pg_upgrade.h

@@ -429,7 +429,6 @@ void		pg_fatal(const char *fmt,...) pg_attribute_printf(1, 2) pg_attribute_noret
 void		end_progress_output(void);
 void		prep_status(const char *fmt,...) pg_attribute_printf(1, 2);
 void		prep_status_progress(const char *fmt,...) pg_attribute_printf(1, 2);
-void		check_ok(void);
 unsigned int str2uint(const char *str);