tor: remove redundant firewall rule

"srange => $::INTERNAL" is wrong, since there is no global (puppet)
variable $::INTERNAL (the author meant '$INTERNAL', for the ferm
variable). This means that te default value of $srange is used, which is
"undef", so this rule basically whitelists all 0/0.

Fortunately, that's not as bad as it sounds: the controlport only binds
to localhost, so there's no way to access the port remotely right now.
Since we don't really need this, remove the rule altogether.

Change-Id: Idb6aaaed07db11fa3d915ad1b448dc667f5edd05