Drop support for localisation.

Localised messages don't make much sense for a daemon, and there is only the
Dutch translation which costs time to maintain.

po/Makevars

@@ -1,41 +0,0 @@
-# Makefile variables for PO directory in any package using GNU gettext.
-
-# Usually the message domain is the same as the package name.
-DOMAIN = $(PACKAGE)
-
-# These two variables depend on the location of this directory.
-subdir = po
-top_builddir = ..
-
-# These options get passed to xgettext.
-XGETTEXT_OPTIONS = --keyword=_ --keyword=N_
-
-# This is the copyright holder that gets inserted into the header of the
-# $(DOMAIN).pot file.  Set this to the copyright holder of the surrounding
-# package.  (Note that the msgstr strings, extracted from the package's
-# sources, belong to the copyright holder of the package.)  Translators are
-# expected to transfer the copyright for their translations to this person
-# or entity, or to disclaim their copyright.  The empty string stands for
-# the public domain; in this case the translators are expected to disclaim
-# their copyright.
-COPYRIGHT_HOLDER = Ivo Timmermans and Guus Sliepen
-
-# This is the email address or URL to which the translators shall report
-# bugs in the untranslated strings:
-# - Strings which are not entire sentences, see the maintainer guidelines
-#   in the GNU gettext documentation, section 'Preparing Strings'.
-# - Strings which use unclear terms or require additional context to be
-#   understood.
-# - Strings which make invalid assumptions about notation of date, time or
-#   money.
-# - Pluralisation problems.
-# - Incorrect English spelling.
-# - Incorrect formatting.
-# It can be your email address, or a mailing list address where translators
-# can write to without being subscribed, or the URL of a web page through
-# which the translators can contact you.
-MSGID_BUGS_ADDRESS = tinc-devel@tinc-vpn.org
-
-# This is the list of locale categories, beyond LC_MESSAGES, for which the
-# message catalogs shall be used.  It is usually empty.
-EXTRA_LOCALE_CATEGORIES =

po/POTFILES.in

@@ -1,35 +0,0 @@
-# List of files which contain translatable strings.
-# Copyright (C) 1999,2000 Ivo Timmermans
-
-# Package source files
-
-lib/pidfile.c
-lib/utils.c
-src/conf.c
-src/connection.c
-src/meta.c
-src/net.c
-src/net_packet.c
-src/net_setup.c
-src/net_socket.c
-src/netutl.c
-src/protocol.c
-src/protocol_auth.c
-src/protocol_edge.c
-src/protocol_key.c
-src/protocol_misc.c
-src/protocol_subnet.c
-src/subnet.c
-src/tincd.c
-src/process.c
-src/route.c
-src/node.c
-src/edge.c
-src/graph.c
-src/linux/device.c
-src/solaris/device.c
-src/bsd/device.c
-src/cygwin/device.c
-src/mingw/device.c
-src/raw_socket/device.c
-src/uml_socket/device.c