Removed unused image and source file.

artwork-src/background.svg

@@ -1,47 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Created with Inkscape (http://www.inkscape.org/) -->
-
-<svg
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   version="1.1"
-   width="20"
-   height="20"
-   id="svg2">
-  <defs
-     id="defs4" />
-  <metadata
-     id="metadata7">
-    <rdf:RDF>
-      <cc:Work
-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title></dc:title>
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <g
-     transform="translate(-100,-732.36218)"
-     id="layer1">
-    <rect
-       width="20"
-       height="20"
-       x="100"
-       y="732.36218"
-       id="rect3822"
-       style="fill:#646464;fill-opacity:1;fill-rule:nonzero;stroke:none" />
-    <path
-       d="m 120,752.36218 -10,0 10,-10 z"
-       id="path2985-7"
-       style="fill:#969696;fill-opacity:1;stroke:none" />
-    <path
-       d="m 100,752.36218 20,-20 -10,0 -10,10 z"
-       id="path3814"
-       style="fill:#969696;fill-opacity:1;stroke:none" />
-  </g>
-</svg>