chore!: remove autorun.sh

i think the existence of multiple built-in ways to add scripts
makes it more complicated,
and paradoxically, autorun was made to uncomplicate things

with the removal of clear "pre" and "post" hooks,
only a linear list of modules, the filesystem-based method
is ever more complicated

if such a feature is ever wanted again,
it should be implemented inside the script module

config/recipe.yml

@@ -4,17 +4,12 @@ base-image: ghcr.io/ublue-os/silverblue-main
 image-version: 38
 
 modules:
-  - type: script
-    scripts:
-      - autorun.sh pre
-
   - from-file: common-packages.yml # paths relative to "config" directory
 
   - type: script
     scripts:
       # this sets up the proper policy & signing files for signed images to work
       - signing.sh 
-      - autorun.sh post
 
   - type: yafti # no need for an enable-disable key, inclusion implicitly enables
     # config: yafti.yml # if not specified, would use a default config TODO