Remove PKGBUILD for ArchLinux as they do not respect copyright.

PKGBUILD

@@ -1,45 +0,0 @@
-# Maintainer: June Tate-Gans <june@theonelab.com>
-
-pkgbase="g13gui"
-pkgname="g13gui-git"
-pkgrel=1
-pkgver="(replaceme)"
-pkgdesc="A user-space driver and GUI configurator for the Logitech G13"
-arch=('any')
-url="https://github.com/jtgans/g13gui"
-license=('MIT')
-depends=(
-  'python>=3.8'
-  'python-appdirs'
-  'python-cffi'
-  'python-dbus'
-  'python-evdev'
-  'python-gobject'
-  'python-pillow>=10.0.1'
-  'python-psutil'
-  'python-pyusb>=1.0.2'
-  'python-xlib'
-  'gtk3'
-  'xorg-fonts-misc'
-)
-makedepends=('git' 'meson')
-source=("${pkgname}::git+http://github.com/jtgans/g13gui.git")
-sha256sums=('SKIP')
-
-pkgver() {
-    cd "${srcdir}"
-    git rev-parse --short HEAD
-}
-
-prepare() {
-    cd "${srcdir}"
-    git checkout master
-}
-
-build() {
-    arch-meson "${srcdir}/${pkgname}" build
-}
-
-package() {
-    meson install -C build --destdir "${pkgdir}"
-}