Fix inconsistent icon sizes

share/icons/svg/message-close.svg

@@ -1,65 +0,0 @@
-<?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#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   viewBox="0 0 16 16"
-   version="1.1"
-   id="svg6"
-   sodipodi:docname="tab-close.svg"
-   inkscape:version="0.92.1 r">
-  <metadata
-     id="metadata10">
-    <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>
-  <sodipodi:namedview
-     pagecolor="#ffffff"
-     bordercolor="#666666"
-     borderopacity="1"
-     objecttolerance="10"
-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:window-width="791"
-     inkscape:window-height="480"
-     id="namedview8"
-     showgrid="false"
-     inkscape:zoom="14.75"
-     inkscape:cx="8"
-     inkscape:cy="8"
-     inkscape:window-x="1301"
-     inkscape:window-y="443"
-     inkscape:window-maximized="0"
-     inkscape:current-layer="svg6" />
-  <defs
-     id="defs3051">
-    <style
-       type="text/css"
-       id="current-color-scheme">
-      .ColorScheme-Text {
-        color:#f2f2f2;
-      }
-      .ColorScheme-NegativeText {
-        color:#da4453;
-      }
-      </style>
-  </defs>
-  <path
-     style="fill:#ffffff;fill-opacity:1;stroke:none"
-     class="ColorScheme-NegativeText"
-     d="M 8,2 A 6,6 0 0 0 2,8 6,6 0 0 0 8,14 6,6 0 0 0 14,8 6,6 0 0 0 8,2 Z M 5.70703,5 8,7.29297 10.29297,5 11,5.70703 8.70703,8 11,10.29297 10.29297,11 8,8.70703 5.70703,11 5,10.29297 7.29297,8 5,5.70703 5.70703,5 Z"
-     id="path4" />
-</svg>