refactor: Remove unnecessary SVG metadata

assets/avatar_default.svg

@@ -1,21 +1,9 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<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#"
+<svg
     xmlns="http://www.w3.org/2000/svg" id="svg8" version="1.1" viewBox="0 0 211.66666 211.66667"
     height="800" width="800">
   <defs
      id="defs2" />
-  <metadata
-     id="metadata5">
-    <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>
   <rect
      ry="25"
      y="0"