testing/angband: upgrade to 4.2.5

This allows dropping the config.sub fix in APKBUILD since it was fixed upstream.

testing/angband/APKBUILD

 # Contributor: Elly Fong-Jones <elly@elly.town>
 # Maintainer: Elly Fong-Jones <elly@elly.town>
 pkgname=angband
-pkgver=4.2.4
+pkgver=4.2.5
 pkgrel=0
 pkgdesc="Roguelike computer role playing game"
 url="https://rephial.org"
@@ -19,12 +19,6 @@ builddir="$srcdir/Angband-$pkgver"
 # to run: https://github.com/angband/angband/issues/5517
 options="!check"
 
-prepare() {
-	default_prepare
-	# angband ships some obsolete autoconf intermediates that choke on musl
-	update_config_sub
-}
-
 build() {
 	./configure \
 		--build=$CBUILD \
@@ -56,5 +50,5 @@ package() {
 }
 
 sha512sums="
-41a36a0be570ccef62da826a9a53fa20d82c7adf8e862389ed92340a20a0426d21433c507c25a56ef63809aa2023d54d3689072168a87c7f2b3109caa848ada3  Angband-4.2.4.tar.gz
+5d907849da64c27b16ebd8fac839eb7db72d7f2352671c57545beea6700dfd1c5b3387e6a222da12ef066329c28108d03bad6e84c99ab8bcb68513adbb71aad1  Angband-4.2.5.tar.gz
 "