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

futureprototype-theme/sources/cd-dvd/cd-cover.svg

@@ -22,7 +22,6 @@
    id="svg797"
    sodipodi:docname="cd-cover.svg"
    inkscape:version="0.92.2 (5c3e80d, 2017-08-06)"
-   inkscape:export-filename="C:\Users\xine\Documents\2018-debian-buster\futurePrototype-source\cd-dvd\png\cd-cover.png"
    inkscape:export-xdpi="96"
    inkscape:export-ydpi="96"><metadata
      id="metadata803"><rdf:RDF><cc:Work

futureprototype-theme/sources/cd-dvd/cd.svg

@@ -22,7 +22,6 @@
    xml:space="preserve"
    sodipodi:docname="cd.svg"
    inkscape:version="0.92.2 (5c3e80d, 2017-08-06)"
-   inkscape:export-filename="C:\Users\xine\Documents\2018-debian-buster\futurePrototype-source\cd-dvd\png\cd.png"
    inkscape:export-xdpi="96"
    inkscape:export-ydpi="96"><metadata
      id="metadata188"><rdf:RDF><cc:Work
@@ -68,7 +67,6 @@
      id="path8"
      inkscape:connector-curvature="0"
      style="fill:url(#linearGradient1506);fill-opacity:1"
-     inkscape:export-filename="C:\Users\xine\Documents\2018-debian-buster\futurePrototype-source\cd-dvd\png\cd.png"
      inkscape:export-xdpi="96"
      inkscape:export-ydpi="96" /><g
      id="g1451"