temp/raspberrypi-bootloader: remove (#1597)

This has been updated to the latest official release in Alpine,
so we don't need our version anymore.

aports/temp/raspberrypi-bootloader/APKBUILD

@@ -1,41 +0,0 @@
-# Forked from Alpine to update to support latest raspberry pi 3B+
-# Contributor: He Yangxuan <yangxuan8282@gmail.com>
-
-pkgname=raspberrypi-bootloader
-pkgver=20180518
-_commit=a46b1f9521229ec26a1377aab7d013df1ade2791
-pkgrel=0
-pkgdesc="Bootloader files for the Raspberry Pi"
-url=https://github.com/raspberrypi/firmware
-arch="armhf"
-license="custom"
-depends=""
-makedepends=""
-install=
-options="!check !strip"
-source="$url/raw/$_commit/boot/bootcode.bin
-	$url/raw/$_commit/boot/fixup.dat
-	$url/raw/$_commit/boot/start.elf
-	$url/raw/$_commit/boot/fixup_x.dat
-	$url/raw/$_commit/boot/start_x.elf"
-subpackages="$pkgname-x:bootloader_x"
-
-package() {
-	cd "$srcdir"
-	mkdir -p "$pkgdir"/boot
-	cp bootcode.bin fixup.dat start.elf "$pkgdir"/boot/
-}
-
-bootloader_x() {
-	pkgdesc="Extra codecs for the Raspberry Pi"
-	depends="$pkgname"
-	cd "$srcdir"
-	mkdir -p "$subpkgdir"/boot
-	cp start_x.elf fixup_x.dat "$subpkgdir"/boot/
-}
-
-sha512sums="c72ca625e16e0a11524f77b5b7a764fec9c93178d4c8fe5ba60225dcfacd3fe5c363542c452829f9e5458282cbe607ca3027c80f9d9599523eb9a3443976b8db  bootcode.bin
-7e51fc705abf5606205963028abf20324c153a2db8ed63e48ad4ef7fe42bf5cc30f41a49e361b222ef6cbf29a4c8103063f40e2397abfb37911c87f52399b330  fixup.dat
-ddb0933ca1db3037b0c9f0b9d718605f039063cf140518c6bc2c10e54c75285f812775207829a226822a3e076e4f3f540bd51520ad4166aa99aedf2a1b240fe3  start.elf
-e43857bddd1e033645b4da6cf8cff0169db27112d0c60a778734c2133f6a61a780952045e6a02206f36d97d70e0dafa18b83818cd49e0cafd524f72768b5a5ff  fixup_x.dat
-b8324d841ca3a27ad788c10b2513666341f0c7d8d0b58ca30bf752ad87715bbf19561796fd2a3b7436b4a11d973506d5addc238ffff084a07264d6a2b5336631  start_x.elf"