main/charging-sdl: remove (MR 3872)

It has almost been two years since pma#1064 was created[1], and nothing
has changed since really. If someone wants to revive charging-sdl, they
can just revert these commits, but given the status quo I don't think
there is any reason to keep this around until it changes.

 [1] https://gitlab.com/postmarketOS/pmaports/-/issues/1064

Closes https://gitlab.com/postmarketOS/pmaports/-/issues/1064

main/charging-sdl/APKBUILD

@@ -1,23 +0,0 @@
-# Maintainer: Daniele Debernardi <drebrez@gmail.com>
-pkgname=charging-sdl
-pkgver=0.1
-pkgrel=1
-pkgdesc="SDL2 charging application for the initramfs"
-url="https://gitlab.com/postmarketOS/charging-sdl"
-arch="all"
-license="GPL-3.0-or-later"
-depends="mesa-gl directfb"
-makedepends="linux-headers sdl2-dev sdl2_ttf-dev"
-source="$pkgname-$pkgver.tar.gz::https://gitlab.com/postmarketOS/charging-sdl/-/archive/$pkgver/charging-sdl-$pkgver.tar.gz"
-options="!strip !check" # No tests
-
-build() {
-	make
-}
-
-package() {
-	install -D -m755 charging_sdl \
-		"$pkgdir"/usr/bin/charging-sdl
-}
-
-sha512sums="61cb132da5780f230280eb9cd24971cc2ea038890b098ccd04f842eb80c2ebfa3a27d619e28d8a37fe64c5a3863fbab68e2842d830f7f4658e52888436647858  charging-sdl-0.1.tar.gz"