Delete make-zeroc-ice as there is no longer manual references on debian/control

helpers/make-zeroc-ice

-#!/bin/sh
-#
-#    Copyright (C) 2015  Legimet <legimet.calc@gmail.com>
-#
-#    This program is free software; you can redistribute it and/or modify
-#    it under the terms of the GNU General Public License as published by
-#    the Free Software Foundation; either version 2 of the License, or
-#    (at your option) any later version.
-#
-#    This program is distributed in the hope that it will be useful,
-#    but WITHOUT ANY WARRANTY; without even the implied warranty of
-#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#    GNU General Public License for more details.
-#
-#    You should have received a copy of the GNU General Public License
-#    along with this program; if not, write to the Free Software
-#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-#
-
-VERSION=1
-
-. ./config
-
-perl -0777 -i -pe 's/\n and in the non-free package zeroc-ice-manual//igs' debian/control
-perl -0777 -i -pe 's/ and in the\n non-free package zeroc-ice-manual//igs' debian/control
-perl -0777 -i -pe 's/ and in the non-free\n package zeroc-ice-manual//igs' debian/control
-perl -0777 -i -pe 's/ and in the non-free package\n zeroc-ice-manual//igs' debian/control
-perl -0777 -i -pe 's/ You\n will find more information in the non-free package zeroc-ice-manual.//igs' debian/control
-
-changelog "Remove references to nonfree manual, #7963"
-
-compile
-