gnu: Remove key-mon.scm.

The file is empty.

* gnu/packages/key-mon.scm: Remove file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Remove it.
* po/packages/POTFILES.in: Remove it.

gnu/local.mk

@@ -362,7 +362,6 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/kde-systemtools.scm		\
   %D%/packages/kde-utils.scm			\
   %D%/packages/kerberos.scm			\
-  %D%/packages/key-mon.scm			\
   %D%/packages/kodi.scm				\
   %D%/packages/language.scm			\
   %D%/packages/lean.scm				\

gnu/packages/key-mon.scm

@@ -1,28 +0,0 @@
-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015 Ludovic Courtès <ludo@gnu.org>
-;;;
-;;; This file is part of GNU Guix.
-;;;
-;;; GNU Guix 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 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
-
-(define-module (gnu packages key-mon)
-  #:use-module (guix licenses)
-  #:use-module (guix packages)
-  #:use-module (guix download)
-  #:use-module (gnu packages)
-  #:use-module (gnu packages python)
-  #:use-module (gnu packages python-xyz)
-  #:use-module (gnu packages gtk)
-  #:use-module (gnu packages gnome)
-  #:use-module (guix build-system python))

po/packages/POTFILES.in

@@ -25,7 +25,6 @@ gnu/packages/image.scm
 gnu/packages/image-viewers.scm
 gnu/packages/inkscape.scm
 gnu/packages/jemalloc.scm
-gnu/packages/key-mon.scm
 gnu/packages/less.scm
 gnu/packages/lesstif.scm
 gnu/packages/libreoffice.scm