Remove unwanted metadata from SVG files. (Closes: #956102)

spacefun-theme/wallpaper/contents/images/1280x1024.svg

@@ -16,7 +16,6 @@
    version="1.1"
    inkscape:version="0.91 r13725"
    sodipodi:docname="1280x1024.svg"
-   inkscape:export-filename="/tmp/wallpaper_1440x1152.png"
    inkscape:export-xdpi="90"
    inkscape:export-ydpi="90">
   <defs

spacefun-theme/wallpaper/contents/images/1280x720.svg

@@ -16,7 +16,6 @@
    version="1.1"
    inkscape:version="0.91 r13725"
    sodipodi:docname="1280x720.svg"
-   inkscape:export-filename="/tmp/wallpaper_1440x1152.png"
    inkscape:export-xdpi="90"
    inkscape:export-ydpi="90">
   <defs

spacefun-theme/wallpaper/contents/images/1920x1080.svg

@@ -16,7 +16,6 @@
    version="1.1"
    inkscape:version="0.91 r13725"
    sodipodi:docname="1920x1080.svg"
-   inkscape:export-filename="/tmp/wallpaper_1440x1152.png"
    inkscape:export-xdpi="90"
    inkscape:export-ydpi="90">
   <defs

spacefun-theme/wallpaper/contents/images/1920x1200.svg

@@ -16,7 +16,6 @@
    version="1.1"
    inkscape:version="0.91 r13725"
    sodipodi:docname="1920x1200.svg"
-   inkscape:export-filename="/tmp/wallpaper_1440x1152.png"
    inkscape:export-xdpi="90"
    inkscape:export-ydpi="90">
   <defs

spacefun-theme/wallpaper/contents/images/3840x2160.svg

@@ -16,7 +16,6 @@
    version="1.1"
    inkscape:version="0.92.0 r15299"
    sodipodi:docname="3840x2160.svg"
-   inkscape:export-filename="/tmp/wallpaper_1440x1152.png"
    inkscape:export-xdpi="90"
    inkscape:export-ydpi="90">
   <defs