drop the init script for handling swap partition in CE again, drop mkswap call

parted enables the swap partition during partition creation time
already, so we'd have to rewrite the partition stuff as well.
Turns out the difference between VM sizes (no swap vs. swap) is just
about 30MB, so let's drop the efforts regarding removal-but-enabling-swap-afterwards
and instead we get a even more homogeneous solution. :)

From: Michael Prokop <mprokop@sipwise.com>

deployment.sh

@@ -730,60 +730,12 @@ fi
 sync
 mount /dev/${DISK}1 $TARGET
 
-if [[ $(imvirt) == "Physical" ]] || $PRO_EDITION ; then
-  # provide useable swap partition
-  SWAP_PARTITION="/dev/${DISK}2"
-
-  echo "Initialising swap partition $SWAP_PARTITION"
-  mkswap "$SWAP_PARTITION"
-
-  echo "Enabling swap partition $SWAP_PARTITION via /etc/fstab"
-  cat >> "${TARGET}/etc/fstab" << EOF
+# provide useable swap partition
+SWAP_PARTITION="/dev/${DISK}2"
+echo "Enabling swap partition $SWAP_PARTITION via /etc/fstab"
+cat >> "${TARGET}/etc/fstab" << EOF
 $SWAP_PARTITION                      none           swap       sw,pri=0  0  0
 EOF
-elif $CE_EDITION ; then
-  # install self destructing init script which enables swap partition on first
-  # boot so we have swap in CE installations but don't add the initialised
-  # swap partition to our VM images (which would increase its size)
-  cat > ${TARGET}/etc/init.d/enableswap << EOF
-#!/bin/sh
-### BEGIN INIT INFO
-# Provides:          enableswap
-# Required-Start:    checkroot
-# Required-Stop:
-# Default-Start:     S
-# Default-Stop:
-# X-Interactive:     true
-# Short-Description: Enable swap partition(s) on first boot
-### END INIT INFO
-
-PATH=/sbin:/bin
-
-# hardcoded for now
-partition=/dev/sda2
-
-[ -b "\$partition" ] || exit 0
-
-if grep -q "^\${partition}.*swap" /etc/fstab ; then
-  echo "\$0 - Nothing to do as \$partition is enabled already"
-else
-  echo "\$0 - Enabling swap partition \$partition in /etc/fstab"
-  echo "# enabled on 1st boot:"         >> /etc/fstab
-  echo "\${partition} none swap sw 0 0" >> /etc/fstab
-fi
-
-echo "\$0 - Removing itself now..."
-insserv -r enableswap
-rm -f "\$0"
-
-exit 0
-# EOF
-EOF
-
-  chroot $TARGET chmod 775 /etc/init.d/enableswap
-  chroot $TARGET ln -s /etc/init.d/enableswap /etc/rcS.d/S03enableswap
-  chroot $TARGET insserv enableswap
-fi
 
 # removals: packages which debootstrap installs but d-i doesn't
 chroot $TARGET apt-get --purge -y remove \