refact: drop selinux-policy-default from the installer factory too

Same dead weight as in the system images (f0a1b0c): nothing enabled
SELinux, and the installer has even less reason to carry a policy than
the system does. The #-selinux-policy-default marker in Dockerfile.lxc
goes with it - it pointed at a line that no longer exists.

Not built yet.

Signed-off-by: Simon Walz <contact@simonwalz.de>

Author: simonwalz-work

installer-factory/Dockerfile

@@ -27,7 +27,6 @@ RUN apt-get update && apt-get install --no-install-recommends -y \
     linux-image-amd64 \
     mtools \
     pv \
-    selinux-policy-default \
     syslinux \
     xorriso \
     && apt-get clean && rm -rf /var/lib/apt/lists/*

system/Dockerfile.lxc

@@ -26,7 +26,6 @@ RUN echo "Cache buster: v1" \
   #-kbd \
   kmod \
   lsb-release \
-  #-selinux-policy-default \
   systemd \
   systemd-sysv \
   #-systemd-timesyncd \