Polybar: Move the rest of the script into the config

Because why the hell not. It was only four lines anyway.

.config/polybar/config

@@ -406,7 +406,7 @@ label-warn-foreground = ${res/colors.alert}
 [module/update-arch]
 inherit = template/module
 type = custom/script
-exec = $HOME/.config/polybar/update-arch.sh
+exec = echo `checkupdates | wc -l`
 exec-if = wget -q --spider http://www.startpage.com/ && uname -r | grep -q "ARCH" && [ `checkupdates | wc -l` != 0 ]
 format-prefix = " "
 format-prefix-foreground = ${res/colors.alert-dark}

.config/polybar/update-arch.sh

@@ -1,5 +0,0 @@
-#!/usr/bin/env bash
-uname -r | grep -q "ARCH" || exit
-CHECKUPDATES_DB=/tmp/$(uuidgen)/
-numupdates=$(checkupdates | wc -l)
-echo $numupdates