i3: Remove i3 autostart package

The application autostart takes too long and is more intrusive than
anticipated. If I want to use qutebrowser, I can just start qutebrowser
on my and don't need to wait for i3 to do it for me --- especially since
the starting procedure takes a while and the application starts on the
wrong workspace anyways when it autostarts while I change desktops.

Spotify is not installed currently and throws an error each time, so
that is also not very useful.

An option for this to make a return might be as automatically starting
systemd services, which quickly switch to the correct workspace when the
application actually starts up -- but it is probably not worth the
hassle.

Lastly, this let's me get rid of a script in the i3 configuration
directory, which did not really belong there anyways with the XDG
distinction of 'configuration' and 'data'.

i3/.config/i3/config

@@ -199,8 +199,3 @@ for_window [class="^spotify$"] move to workspace 10
 for_window [class="floating"] floating enable
 for_window [class="scratchpad"] floating enable
 for_window [class="scratchpad"] move scratchpad
-
-# autostart often used apps
-# needs to be done like this to both automatically start the apps on correct workspace
-# and not confine them there forever
-exec $XDG_CONFIG_HOME/i3/scripts/i3-applications-autostart

i3/.config/i3/scripts/i3-applications-autostart

@@ -1,34 +0,0 @@
-#!/usr/bin/env bash
-
-# Wait for program coming up
-wait_for_program() {
-  n=0
-  while true; do
-    # PID of last background command
-    if xdotool search --onlyvisible --pid $! 2>/dev/null; then
-      break
-    else
-      if [ $n -gt 200 ]; then
-        notify-send -u critical "Error during start: last program $! did not start fast enough"
-        break
-      else
-        n=$((n + 1))
-        sleep 0.1
-      fi
-    fi
-  done
-}
-
-i3-msg "workspace number 2"
-alacritty &
-wait_for_program
-
-i3-msg "workspace number 10"
-spotify &
-wait_for_program
-
-i3-msg "workspace number 1"
-qutebrowser &
-wait_for_program
-
-i3-msg "workspace number 3"