remove APKBUILD, it's been submitted to Alpine

tools/APKBUILD

@@ -1,42 +0,0 @@
-# Contributor: Nick Black <dankamongmen@gmail.com>
-# Maintainer: Nick Black <dankamongmen@gmail.com>
-pkgname=notcurses
-pkgver="1.5.3"
-pkgrel=0
-pkgdesc="Blingful character graphics and TUI library"
-url="https://nick-black.com/dankwiki/index.php/Notcurses"
-arch="all"
-license="Apache-2.0"
-depends="ffmpeg ncurses-terminfo"
-makedepends="cmake ncurses-dev linux-headers ffmpeg-dev"
-install=""
-subpackages="$pkgname-dev $pkgname-doc"
-source="${pkgname}-${pkgver}.tar.gz::https://github.com/dankamongmen/notcurses/archive/v${pkgver}.tar.gz"
-builddir="$srcdir/"
-
-build() {
-	if [ "$CBUILD" != "$CHOST" ]; then
-		CMAKE_CROSSOPTS="-DCMAKE_SYSTEM_NAME=Linux -DCMAKE_HOST_SYSTEM_NAME=Linux"
-	fi
-	cmake -B "build" -S "${pkgname}-${pkgver}" \
-		-DCMAKE_INSTALL_PREFIX=/usr \
-		-DCMAKE_INSTALL_LIBDIR=lib \
-		-DBUILD_SHARED_LIBS=True \
-		-DCMAKE_BUILD_TYPE=RelWithDebugInfo \
-    -DBUILD_TESTING=off \
-    -DUSE_PANDOC=off \
-    -DUSE_QRCODEGEN=off \
-    -DUSE_PYTHON=off \
-		${CMAKE_CROSSOPTS}
-	make -C "build"
-}
-
-check() {
-	CTEST_OUTPUT_ON_FAILURE=1 make -C "${pkgname}-${pkgver}/build" check
-}
-
-package() {
-	make -C "${pkgname}-${pkgver}/build" DESTDIR="$pkgdir" install
-}
-
-sha512sums="8f8ed2b9096653d5846c7b2fa372aaf4aa95ab97a3084b192bdf8442d6cbdfe8e11c0210f4b6d06a6d56a44b6c15eb267558cf0025604f456776bb65ccf0bb27  notcurses-1.5.2.tar.gz"