[#103] Removed unnecessary preamble

LICENSE

-# Copyright (c) 2004-2020 by Internet Systems Consortium, Inc. ("ISC")
-# Copyright (c) 1995-2003 by Internet Software Consortium
-#
-# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
-# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
-# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-#
-#   Internet Systems Consortium, Inc.
-#   950 Charter Street
-#   Redwood City, CA 94063
-#   <info@isc.org>
-#   https://www.isc.org/
-#
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0, included below.
-#
-# See the specific source files for any additional copyright or
-# license statements.
-
 Mozilla Public License, version 2.0
 
 1. Definitions