[build] Remove PKGBUILD (this time for real)

Actually is part of the AUR repo, and keeping those two files in sync is
problematic.

fixes #510

PKGBUILD

@@ -1,41 +0,0 @@
-# Maintainer: Tobias Witek <tobi@tobi-wan-kenobi.at>
-# Contributor: Daniel M. Capella <polycitizen@gmail.com>
-# Contributor: spookykidmm <https://github.com/spookykidmm>
-
-pkgname=bumblebee-status
-pkgver=1.8.0
-pkgrel=1
-pkgdesc='Modular, theme-able status line generator for the i3 window manager'
-arch=('any')
-url=https://github.com/tobi-wan-kenobi/bumblebee-status
-license=('MIT')
-depends=('python' 'python-netifaces' 'python-psutil' 'python-requests')
-optdepends=('xorg-xbacklight: to display a displays brightness'
-            'xorg-xset: enable/disable automatic screen locking'
-            'libnotify: enable/disable automatic screen locking'
-            'dnf: display DNF package update information'
-            'xorg-setxkbmap: display/change the current keyboard layout'
-            'redshift: display the redshifts current color'
-            'pulseaudio: control pulseaudio sink/sources'
-            'xorg-xrandr: enable/disable screen outputs'
-            'pacman: display current status of pacman'
-            'iputils: display a ping'
-            'i3ipc-python: display titlebar'
-            'fakeroot: dependency of the pacman module'
-            'pytz: timezone conversion for datetimetz module'
-            'tzlocal: retrieve system timezone for datetimetz module'
-)
-source=("$pkgname-$pkgver.tar.gz::$url/archive/v$pkgver.tar.gz")
-sha512sums=('b985e6619856519a92bd1a9d2a762997e8920a0ef5007f20063fcb2f9afeb193de67e8b0737182576f79ee19b2dd3e6388bb9b987480b7bc19b537f64e9b5685')
-
-package() {
-  install -d "$pkgdir"/usr/bin \
-    "$pkgdir"/usr/share/$pkgname/{bumblebee/modules,themes/icons}
-  ln -s /usr/share/$pkgname/$pkgname "$pkgdir"/usr/bin/$pkgname
-
-  cd $pkgname-$pkgver
-  cp -a --parents $pkgname bumblebee/{,modules/}*.py themes/{,icons/}*.json $pkgdir/usr/share/$pkgname
-  cp -r bin $pkgdir/usr/share/$pkgname/
-
-  install -Dm644 LICENSE "$pkgdir"/usr/share/licenses/$pkgname/LICENSE
-}