diff --git a/img/lock.svg b/img/lock.svg
deleted file mode 100644
index 1c6946e6..00000000
--- a/img/lock.svg
+++ /dev/null
@@ -1,53 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Svg Vector Icons : http://www.onlinewebfonts.com/icon -->
-
-<svg
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-   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"
-   version="1.1"
-   x="0px"
-   y="0px"
-   viewBox="0 0 1000 1000"
-   enable-background="new 0 0 1000 1000"
-   xml:space="preserve"
-   id="svg2"
-   inkscape:version="0.91 r13725"
-   sodipodi:docname="lock.svg"><defs
-     id="defs14" /><sodipodi:namedview
-     pagecolor="#ffffff"
-     bordercolor="#666666"
-     borderopacity="1"
-     objecttolerance="10"
-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:window-width="1920"
-     inkscape:window-height="1153"
-     id="namedview12"
-     showgrid="true"
-     showguides="false"
-     inkscape:zoom="0.6675088"
-     inkscape:cx="512.19065"
-     inkscape:cy="615.27226"
-     inkscape:window-x="1050"
-     inkscape:window-y="85"
-     inkscape:window-maximized="1"
-     inkscape:current-layer="g6"><inkscape:grid
-       type="xygrid"
-       id="grid4142" /></sodipodi:namedview><metadata
-     id="metadata4"> Svg Vector Icons : http://www.onlinewebfonts.com/icon <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
-     id="g6"><path
-       d="M500,10C229.4,10,10,229.4,10,500c0,270.6,219.4,490,490,490c270.6,0,490-219.4,490-490C990,229.4,770.6,10,500,10z M500,947.4C252.9,947.4,52.6,747.1,52.6,500C52.6,252.9,252.9,52.6,500,52.6c247.1,0,447.4,200.3,447.4,447.4C947.4,747.1,747.1,947.4,500,947.4z"
-       id="path8" /><path
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-       id="path10"
-       inkscape:connector-curvature="0"
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