temp/arm-trusted-firmware: remove (MR 4191)

This package originally existed to carry local patches not included
upstream. That is not longer the case, and using the Alpine package
works fine.

Additionally, this package tends to lag behind; Alpine currently ships
2.8.6.

References: https://gitlab.com/postmarketOS/pmaports/-/issues/1611

[ci:skip-build] already built successfully in CI

temp/arm-trusted-firmware/APKBUILD

@@ -1,57 +0,0 @@
-# Contributor: Milan P. Stanić <mps@arvanta.net>
-# Contributor: Maxim Karasev <begs@disroot.org>
-# Maintainer: Bart Ribbers <bribbers@disroot.org>
-pkgname=arm-trusted-firmware
-pkgver=9999
-_pkgver=2.8.0
-pkgrel=9
-pkgdesc="ARM Trusted Firmware-A (TF-A)"
-url="https://github.com/ARM-software/arm-trusted-firmware"
-arch="aarch64"
-license="BSD-3-Clause"
-makedepends="dtc openssl-dev gcc-arm-none-eabi"
-source="https://github.com/ARM-software/arm-trusted-firmware/archive/v$_pkgver/arm-trusted-firmware-v$_pkgver.tar.gz"
-options="!check" # No tests
-
-_plats="
-	sun50i_a64
-	sun50i_h6
-	rk3399
-	rk3328
-	"
-builddir="$srcdir/$pkgname-$_pkgver"
-
-build() {
-	unset LDFLAGS
-	for plat in $_plats; do
-		local opts=""
-
-		case "$plat" in
-			sun50i_a64)
-				opts="SUNXI_SETUP_REGULATORS=0 SUNXI_AMEND_DTB=1"
-				;;
-		esac
-
-		msg "Building ATF for $plat (opts='$opts')"
-		LDFLAGS="$LDFLAGS -no-warn-rwx-segment" make E=0 PLAT=$plat bl31 $opts
-	done
-}
-
-package() {
-	for plat in $_plats; do
-		case $plat in
-			rk3399|rk3328)
-				install -D "$builddir"/build/$plat/release/bl31/bl31.elf \
-					"$pkgdir"/usr/share/$pkgname/$plat/bl31.elf
-					;;
-			*)
-				install -D "$builddir"/build/$plat/release/bl31.bin \
-					"$pkgdir"/usr/share/$pkgname/$plat/bl31.bin
-					;;
-		esac
-	done
-}
-
-sha512sums="
-958cf8f9e258638e59d0fbd8b053fce7d8a9ea2fc922686c9d20ea16f79f55219ac18a12ab240c528ee98e49c2e0eef4c963fdb255cc14b92437a5b3cffc8640  arm-trusted-firmware-v2.8.0.tar.gz
-"