deployment: do not remove console-tools to get acpi-support-base installed by default

acpi-support-base in squeeze depends on console-tools (or kbd)[1],
therefore we can't remove console-tools if we want to get
acpi-support-base installed by default

[1] http://packages.debian.org/squeeze/acpi-support-base

From: Michael Prokop <mprokop@sipwise.com>

deployment.sh

@@ -835,7 +835,7 @@ EOF
 
 # removals: packages which debootstrap installs but d-i doesn't
 chroot $TARGET apt-get --purge -y remove \
-ca-certificates console-tools openssl tcpd xauth
+ca-certificates openssl tcpd xauth
 
 if "$PRO_EDITION" ; then
   echo "Pro edition: keeping firmware* packages."