linux-asus-grouper: drop device specific kernel (MR 2584)

Both grouper and tilapia currently uses main/linux-postmarketos-grate

Signed-off-by: David Heidelberg <david@ixit.cz>

device/testing/linux-asus-grouper/APKBUILD

-# Maintainer: David Heidelberg <david@ixit.cz>
-pkgname=linux-asus-grouper
-pkgver=5.14.0_rc3
-pkgrel=1
-arch="armv7"
-pkgdesc="Linux kernel with experimental patches for Tegra (optimized for size constrained boot.img of Nexus 7 grouper/tilapia (2012))"
-url="https://postmarketos.org"
-makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev
-	     devicepkg-dev bison flex openssl-dev xz findutils"
-options="!strip !check !tracedeps pmb:cross-native"
-license="GPL-2.0-only"
-
-# Source
-_flavor=asus-grouper
-_commit="6ab7e328e14f2693ca800ac742f2f5cb3e5e450e"
-_carch="arm"
-_config="config-$_flavor.armv7"
-source="$pkgname-$pkgver-$_commit.tar.gz::https://github.com/grate-driver/linux/archive/$_commit.tar.gz
-	$_config"
-builddir="$srcdir/linux-$_commit"
-_outdir="out"
-
-prepare() {
-	default_prepare
-
-	REPLACE_GCCH=0 \
-		. downstreamkernel_prepare
-}
-
-build() {
-	unset LDFLAGS
-	make O="$_outdir" ARCH="$_carch" CC="${CC:-gcc}" \
-		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-$_flavor"
-}
-
-package() {
-	downstreamkernel_package "$builddir" "$pkgdir" "$_carch" "$_flavor" "$_outdir"
-
-	make modules_install dtbs_install \
-		O="$_outdir" ARCH="$_carch" \
-		INSTALL_MOD_STRIP=1 \
-		INSTALL_MOD_PATH="$pkgdir" \
-		INSTALL_DTBS_PATH="$pkgdir/usr/share/dtb"
-}
-
-sha512sums="05b76312634a425297fe70b14ce6a5e502227fd9f9c490abc3f20aeb5b330111290fe280cfeeacb53de659beef0c6b3312655fde8263af7f954ce1954560dd20  linux-asus-grouper-5.14.0_rc3-6ab7e328e14f2693ca800ac742f2f5cb3e5e450e.tar.gz
-af9db52e246783ce61a3b0254f0a7de8258bfdcbfb4551e78c3e3b71e63663b999187ac8534a93baa9ccf730ebc51942559e283a4ea2efc07d689547113d81f3  config-asus-grouper.armv7"