chore: remove imports of unused guile modules

buer.scm

@@ -4,8 +4,6 @@
            (gnu artwork)
            (gnu services)
  #|Guix |# (guix gexp)
-           (guix packages)
-           (guix records)
  #|Misc |# (ice-9 match)
  #|Radix|# (radix packages linux)
            (radix services linux)
@@ -20,12 +18,10 @@
 
 (use-service-modules
  #|A|# admin
- #|C|# configuration
  #|D|# desktop
- #|L|# linux
  #|M|# mcron
  #|N|# networking
- #|S|# sound sysctl shepherd)
+ #|S|# sound sysctl)
 
 (use-package-modules
  #|A|# admin