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

joy-theme/lockscreen/contents/images/1280x1024.svg

@@ -16,7 +16,6 @@
    id="svg2"
    version="1.1"
    inkscape:version="0.91 r13725"
-   inkscape:export-filename="/Users/adrienaubourg/Dropbox/wheezy_artwork/exports/proposals/wallpaper_1.png"
    inkscape:export-xdpi="90"
    inkscape:export-ydpi="90"
    sodipodi:docname="1280x1024.svg">

joy-theme/lockscreen/contents/images/1280x720.svg

@@ -16,7 +16,6 @@
    id="svg2"
    version="1.1"
    inkscape:version="0.92.0 r15299"
-   inkscape:export-filename="/tmp/wallpaper_1920x1080.png"
    inkscape:export-xdpi="90"
    inkscape:export-ydpi="90"
    sodipodi:docname="1280x720.svg">

joy-theme/lockscreen/contents/images/1600x1200.svg

@@ -16,7 +16,6 @@
    id="svg2"
    version="1.1"
    inkscape:version="0.91 r13725"
-   inkscape:export-filename="/Users/adrienaubourg/Dropbox/wheezy_artwork/exports/proposals/wallpaper_1.png"
    inkscape:export-xdpi="90"
    inkscape:export-ydpi="90"
    sodipodi:docname="1600x1200.svg">

joy-theme/lockscreen/contents/images/1920x1080.svg

@@ -16,7 +16,6 @@
    id="svg2"
    version="1.1"
    inkscape:version="0.91 r13725"
-   inkscape:export-filename="/tmp/wallpaper_1920x1080.png"
    inkscape:export-xdpi="90"
    inkscape:export-ydpi="90"
    sodipodi:docname="1920x1080.svg">

joy-theme/lockscreen/contents/images/1920x1200.svg

@@ -16,7 +16,6 @@
    id="svg2"
    version="1.1"
    inkscape:version="0.91 r13725"
-   inkscape:export-filename="/Users/adrienaubourg/Dropbox/wheezy_artwork/exports/proposals/wallpaper_1.png"
    inkscape:export-xdpi="90"
    inkscape:export-ydpi="90"
    sodipodi:docname="1920x1200.svg">

joy-theme/lockscreen/contents/images/3840x2160.svg

@@ -16,7 +16,6 @@
    id="svg2"
    version="1.1"
    inkscape:version="0.92.0 r15299"
-   inkscape:export-filename="/tmp/wallpaper_1920x1080.png"
    inkscape:export-xdpi="90"
    inkscape:export-ydpi="90"
    sodipodi:docname="3840x2160.svg">