Fix for GCC 15.

Upstream bug: https://github.com/RsyncProject/rsync/pull/716

--- rsync-3.4.1/wildtest.c	2019-03-16 16:15:49.000000000 +0000
+++ rsync-3.4.1/wildtest.c	2025-07-05 03:31:11.968314401 +0100
@@ -32,8 +32,6 @@
 
 int wildmatch_errors = 0;
 
-typedef char bool;
-
 int output_iterations = 0;
 int explode_mod = 0;
 int empties_mod = 0;