treewide: prune out xorg

overlays/patches/startx.patch

@@ -1,13 +0,0 @@
-diff --git a/startx.cpp b/startx.cpp
-index 125c398..296b29f 100644
---- a/startx.cpp
-+++ b/startx.cpp
-@@ -270,7 +270,7 @@ if [ x"$enable_xauth" = x1 ] ; then
-     dummy=0
- 
-     XCOMM create a file with auth information for the server. ':0' is a dummy.
--    xserverauthfile=$HOME/.serverauth.$$
-+    xserverauthfile=$XAUTHORITY
-     trap "rm -f '$xserverauthfile'" HUP INT QUIT ILL TRAP BUS TERM
-     xauth -q -f "$xserverauthfile" << EOF
- add :$dummy . $mcookie