Remove obsolete license from debian/copyright

debian/copyright

@@ -34,40 +34,3 @@ License: GPL-2.0+
  .
  On Debian systems, the complete text of the GNU General
  Public License version 2 can be found in "/usr/share/common-licenses/GPL-2".
-
-License: BSD-4-clause-like
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- .
- 1. Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
- .
- 2. Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in
-    the documentation and/or other materials provided with the
-    distribution.
- .
- 3. The name "Carnegie Mellon University" must not be used to
-    endorse or promote products derived from this software without
-    prior written permission. For permission or any legal
-    details, please contact
-      Office of Technology Transfer
-      Carnegie Mellon University
-      5000 Forbes Avenue
-      Pittsburgh, PA  15213-3890
-      (412) 268-4387, fax: (412) 268-7395
-      tech-transfer@andrew.cmu.edu
- .
- 4. Redistributions of any form whatsoever must retain the following
-    acknowledgment:
-    "This product includes software developed by Computing Services
-     at Carnegie Mellon University (http://www.cmu.edu/computing/)."
- .
- CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
- THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
- FOR ANY SPECIAL, 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.