TT#38454 Move dependency on 'linux-headers-amd64' to metapackages

Change-Id: I100bc58becbb736e1c1c5d17b4ae883ba14e7346

templates/scripts/includes/deployment.sh

@@ -1211,6 +1211,7 @@ echo > /etc/debootstrap/packages
 
 if ! "$NGCP_INSTALLER" ; then
   echo "Install some packages to be able to login on the Debian plain system"
+  # WARNING: consider to add NGCP packages to NGCP metapackage!
   cat >> /etc/debootstrap/packages << EOF
 # to be able to login on the Debian plain system via SSH
 openssh-server
@@ -1220,12 +1221,6 @@ lvm2
 EOF
 fi
 
-# WARNING: consider to add NGCP packages to NGCP metapackage!
-cat >> /etc/debootstrap/packages << EOF
-# required for dkms
-linux-headers-amd64
-EOF
-
 # NOTE: we use the debian.sipwise.com CNAME by intention here
 # to avoid conflicts with apt-pinning, preferring deb.sipwise.com
 # over official Debian