ubuntu-cpc: parallel builds: Re-organize hooks

live-build/ubuntu-cpc/hooks/999-extras.binary

@@ -1,16 +0,0 @@
-#!/bin/bash
-# Execute extra binary hooks.
-
-my_dir=$(dirname $(readlink -f ${0}))
-extra_d=${my_dir}/extra
-
-if [ ! -d ${my_dir}/extra ]; then
-    exit 0
-fi
-
-export IMAGE_STR="# CLOUD_IMG: This file was created/modified by the Cloud Image build process"
-export CLOUD_IMG_STR="$IMAGE_STR"
-export FS_LABEL="cloudimg-rootfs"
-
-# Cleaner execution
-/bin/run-parts --exit-on-error --regex ".*\.binary" "${extra_d}"