initscripts: remove Gentoo initscript

The Gentoo initscript is being patched downstream anyway. It
will be easier to maintain it in just one place.

See discussion at bugs.gentoo.org:

https://bugs.gentoo.org/show_bug.cgi?id=441754

configure.ac

@@ -687,7 +687,6 @@ cli/Makefile
 cli/src/Makefile
 test/Makefile
 initscript/RedHat/NetworkManager
-initscript/Gentoo/NetworkManager
 initscript/Debian/NetworkManager
 initscript/Slackware/rc.networkmanager
 initscript/SUSE/networkmanager

initscript/Gentoo/NetworkManager.in

@@ -1,23 +0,0 @@
-#!/sbin/runscript
-# Copyright (c) 2008 Saleem Abdulrasool <compnerd@compnerd.org>
-# Distributed under the terms of the GNU General Purpose License v2
-# $Header: $
-
-depend() {
-   need dbus
-}
-
-start() {
-   ebegin "Starting NetworkManager"
-   start-stop-daemon --start --quiet --pidfile /var/run/NetworkManager.pid \
-      --exec /usr/sbin/NetworkManager -- --pid-file /var/run/NetworkManager.pid
-   eend $?
-}
-
-stop() {
-   ebegin "Stopping NetworkManager"
-   start-stop-daemon --stop --quiet --pidfile /var/run/NetworkManager.pid
-   eend $?
-}
-
-# vim: set ft=gentoo-init-d ts=3 sw=3 et: