add uninstall script

uninstall.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+
+_user_id=$(id -u)
+
+if [ "$_user_id" -eq 0 ] ; then
+  echo "pacman-update-count.sh: error - must be run as normal user, not root"
+  exit 1
+fi
+
+sudo systemctl disable pacman-update-count.timer
+sudo systemctl stop pacman-update-count.timer
+sudo rm /etc/systemd/system/pacman-update-count.*
+sudo systemctl daemon-reload
+
+systemctl --user disable update-notifier.timer
+systemctl --user stop update-notifier.timer
+rm ~/.config/systemd/user/update-notifier.*
+systemctl --user daemon-reload
+
+sudo rm /usr/local/bin/notify-updates
+sudo rm /usr/local/bin/pacman-update-count