remove metadata skeleton

-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
-<!--
-# $Id$
-
-This is the example metadata file.
-The root element of this file is <pkgmetadata>. Within this element a
-number of subelements are allowed, the most common being maintainer.
-
-For a full description look at:
-https://devmanual.gentoo.org/ebuild-writing/misc-files/metadata/
-
-Before committing, please remove the comments from this file. They are
-not relevant for general metadata.xml files.
--->
-<pkgmetadata>
-<maintainer type="person">
-	<email>exampledev@gentoo.org</email>
-	<description>Primary maintainer</description>
-</maintainer>
-<maintainer type="project">
-	<email>exampleproject@gentoo.org</email>
-	<name>Gentoo Example Project</name>
-</maintainer>
-<longdescription>Long description of the package</longdescription>
-<use>
-	<flag name="aspell">Uses <pkg>app-text/aspell</pkg> for spell checking.
-		Requires an installed dictionary from <cat>app-dicts</cat></flag>
-	<flag name="flag">Description of how USE='flag' affects this package</flag>
-	<flag name="userland_GNU">Description of how USERLAND='GNU' affects this
-		package</flag>
-</use>
-</pkgmetadata>