Drop unused wAbort function from WPrefs.app.

WPrefs.app/main.c

@@ -47,14 +47,6 @@ struct {
 static pid_t DeadChildren[MAX_DEATHS];
 static int DeadChildrenCount = 0;
 
-static noreturn void wAbort(Bool foo)
-{
-	/* Parameter not used, but tell the compiler that it is ok */
-	(void) foo;
-
-	exit(1);
-}
-
 static void print_help(const char *progname)
 {
 	printf(_("usage: %s [options]\n"), progname);