edit: Don't show contact information

edit: Don't show contact information

Interactive edit shows what can be edited, with edit keys and current
values.  When option HIDDEN is enabled, "edit c" additionally shows
contact information like "Countries contacted: 1(6) 2(6) 4(5) ".
Lists the numbers of contacted countries and, in parenthesis, how many
updates contact is going to last if option LOSE_CONTACT is enabled.

The line was added along with option HIDDEN in Empire 2.  As long as
editing contact isn't implemented, it doesn't belong here.  Drop it.
If deities need contact information, we'll have to show it elsewhere.

Signed-off-by: Markus Armbruster <armbru@pond.sub.org>