testing/dart-sass-embedded: remove

the embedded part has been merged by upstream into dart-sass 1.63.0,
packaged in testing/dart-sass, as `sass --embedded`, making this package
obsolete.

testing/dart-sass-embedded/APKBUILD

-# Contributor: Nulo <nulo@sutty.coop.ar>
-# Maintainer: Nulo <nulo@sutty.coop.ar>
-pkgname=dart-sass-embedded
-pkgver=1.57.1
-pkgrel=3
-pkgdesc="The primary implementation of Sass"
-url="https://sass-lang.com/dart-sass"
-arch="x86_64"	# dart
-license="MIT"
-makedepends="dart-sdk dart-dev protobuf"
-options="net"
-_protocol_ver=1.2.0
-source="
-	https://github.com/sass/dart-sass-embedded/archive/refs/tags/$pkgver/dart-sass-embedded-$pkgver.tar.gz
-	embedded-protocol-$_protocol_ver.tar.gz::https://github.com/sass/embedded-protocol/archive/refs/tags/$_protocol_ver.tar.gz
-	add-shebang.patch
-	"
-builddir="$srcdir/dart-sass-embedded-$pkgver/"
-options="!strip" # cannot strip dart aot
-
-prepare() {
-	default_prepare
-
-	mkdir build/
-	mv "$srcdir/embedded-protocol-$_protocol_ver" build/embedded-protocol
-
-	dart pub get
-}
-
-build() {
-	UPDATE_SASS_PROTOCOL=false \
-		dart run grinder protobuf
-	dart run grinder pkg-compile-native
-}
-
-check() {
-	# sanity
-	./build/dart-sass-embedded.native --version
-}
-
-package() {
-	install -Dm755 build/dart-sass-embedded.native "$pkgdir"/usr/bin/dart-sass-embedded
-}
-
-sha512sums="
-5428cf7ea69f63529efef0e5c3d4c06def7ac39d676f010287e8583d898266ec1b432e4e08e968cbb3630f7077819dce49a8904e4a9dbebf59238ecdd3d0c2d6  dart-sass-embedded-1.57.1.tar.gz
-5d836af58501b1664ac621a544d00ffdbc8e2d7ace3748e24811ecdd5b6b1c6e95d0c130386d4b5271a1265f02b262533db463d6bb70645bf732918821aa6667  embedded-protocol-1.2.0.tar.gz
-b5824d513ab2f8753476c88e782bba993c9f0a3fb52ee1a6608eb75547854a4ad8fcb8767bf8968d2507412b60c22a4659a6a769f39c948e4f34f8f0ddd30140  add-shebang.patch
-"

testing/dart-sass-embedded/add-shebang.patch

-diff -crB dart-sass-embedded-1.57.1/tool/grind.dart dart-sass-embedded-1.57.1-patched/tool/grind.dart
-*** dart-sass-embedded-1.57.1/tool/grind.dart	Mon Dec 19 20:53:43 2022
---- dart-sass-embedded-1.57.1-patched/tool/grind.dart	Fri Dec 23 13:46:34 2022
-***************
-*** 55,61 ****
-  ''');
-    } else {
-      File('build/protoc-gen-dart')
-!         .writeAsStringSync('dart pub run protoc_plugin "\$@"');
-      run('chmod', arguments: ['a+x', 'build/protoc-gen-dart']);
-    }
-  
---- 55,62 ----
-  ''');
-    } else {
-      File('build/protoc-gen-dart')
-!         .writeAsStringSync('''#!/bin/sh
-! dart pub run protoc_plugin "\$@" < /dev/stdin''');
-      run('chmod', arguments: ['a+x', 'build/protoc-gen-dart']);
-    }
-