common: don't use --foreign with debootstrap

Now that the build server is updated to bullseye, we don't need to pass
--foreign to cross build anymore.

common.d/base_image.sh

@@ -33,12 +33,6 @@ include packages
 # Execute initial debootstrap
 debootstrap_exec http://http.kali.org/kali
 
-# Enable eatmydata in compilation
-include eatmydata
-
-# debootstrap second stage
-systemd-nspawn_exec eatmydata /debootstrap/debootstrap --second-stage
-
 # Define sources.list
 sources_list
 

common.d/functions.sh

@@ -138,7 +138,7 @@ function systemd-nspawn_exec() {
 # Create the rootfs - not much to modify here, except maybe throw in some more packages if you want.
 function debootstrap_exec() {
   status " debootstrap ${suite} $*"
-  eatmydata debootstrap --foreign --keyring=/usr/share/keyrings/kali-archive-keyring.gpg --components="${components}" \
+  eatmydata debootstrap --merged-usr --keyring=/usr/share/keyrings/kali-archive-keyring.gpg --components="${components}" \
     --include="${debootstrap_base}" --arch "${architecture}" "${suite}" "${work_dir}" "$@"
 }