Drop source7 and source8, the spec no longer uses them

Signed-off-by: Adam Williamson <awilliam@redhat.com>

desktop-backgrounds-fedora.xml

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE wallpapers SYSTEM "gnome-wp-list.dtd">
-<wallpapers>
-    <wallpaper deleted="false">
-        <name>Fedora (@RELEASE_NAME@)</name>
-        <filename>/usr/share/backgrounds/default.xml</filename>
-        <options>stretched</options>
-    </wallpaper>
-</wallpapers>

desktop-backgrounds.spec

@@ -15,8 +15,6 @@ Source2:        Propaganda-1.0.0.tar.gz
 Source3:        README.Propaganda
 Source5:        waves-%{waves_version}.tar.bz2
 Source6:        FedoraWaves-metadata.desktop
-Source7:        desktop-backgrounds-fedora.xml
-Source8:        fedora-metadata.desktop
 BuildArch:      noarch
 %if "x%{?picture_ext}" != "xpng"
 BuildRequires:   ImageMagick

fedora-metadata.desktop

@@ -1,7 +0,0 @@
-[Desktop Entry]
-Name=Fedora
-X-KDE-PluginInfo-Name=Fedora (@RELEASE_NAME@)
-X-KDE-PluginInfo-Author=Fedora Project
-X-KDE-PluginInfo-Email=fedora-kde@lists.fedoraproject.org
-X-KDE-PluginInfo-License=CC-BY-SA
-