openssh: lower the version requirement of lsb-base

The lsb-base requirement was >= 4.1 which is not available in Precise.
The current Precise version is 4.0-0ubuntu20.3.

AFAIK, the only place where lsb-base is needed is /etc/init.d/ssh which
sources /lib/lsb/init-functions. And since we are using Upstart, the
sysv init script is removed.
Remove packages/quantal

It was never used and never will be used. So by definition, it is
useless.