locale: Removed unused variable.
diff --git a/src/locale/windows/SDL_syslocale.c b/src/locale/windows/SDL_syslocale.c
index 053ea7e..9f89ff8 100644
--- a/src/locale/windows/SDL_syslocale.c
+++ b/src/locale/windows/SDL_syslocale.c
@@ -37,7 +37,6 @@
 static void
 SDL_SYS_GetPreferredLocales_winxp(char *buf, size_t buflen)
 {
-    const char **retval = NULL;
     char lang[16];
     char country[16];