chore: Remove creation of deck user, hopefully won't be needed again

system_files/deck/usr/share/ublue-os/firstboot/yafti.yml

@@ -150,11 +150,6 @@ screens:
           default: true
           packages:
           - Enable Autostart: cp ~/usr/share/applications/steam.desktop ~/.config/autostart/steam-silent.desktop && sed -i 's@/usr/bin/steam-runtime  %U@/usr/bin/steam-runtime -silent %U@g' ~/.config/autostart/steam-silent.desktop
-        Create Deck User:
-          description: Creates the "deck" user and group needed for mounting SD cards.
-          default: true
-          packages:
-          - User Setup: just create-deck-user
         Decky Loader:
           description: A plugin loader for the Steam Deck
           default: false

system_files/deck/usr/share/ublue-os/just/custom.just

@@ -1,14 +1,6 @@
 set-steamos-kargs:
   rpm-ostree kargs --append="amd_iommu=off" --append="amdgpu.gttsize=8128" --append="spi_amd.speed_dev=1"
 
-create-deck-user:
-  #!/usr/bin/env bash
-  if ! grep "^deck" /etc/group; then
-    groupadd deck
-    useradd deck -g deck -G wheel
-  fi
-  usermod -a -G deck $(whoami)
-
 create-steam-shortcuts:
   cp /usr/share/applications/steam.desktop ~/Desktop
   cp /etc/skel.d/Desktop/Return.desktop ~/Desktop