UI: Removal of Cruft from SVG Icons Source Files

Each icon had an extra group with tiny features that I must have
duplicated on my prototype file when extracting these from the source
sprite sheet.

release/datafiles/icons_svg/ipo_quad.svg

@@ -1 +1 @@
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+<svg height="1500" viewBox="0 0 1600 1500" width="1600" xmlns="http://www.w3.org/2000/svg" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"><sodipodi:namedview pagecolor="#303030" showgrid="true"><inkscape:grid id="grid5" units="px" spacingx="100" spacingy="100" color="#4772b3" opacity="0.2" visible="true" /></sodipodi:namedview><g fill="#fff"><g enable-background="new" transform="matrix(100 0 0 100 -19400 -19899.805)"><path d="m207.5 201a.50005.50005 0 0 0 -.40039.19922c-1.548 2.064-2.85356 4.80197-4.58594 6.99023-1.73238 2.18827-3.81151 3.81055-7.01367 3.81055a.50005.50005 0 1 0 0 1c3.54784 0 5.96871-1.87772 7.79883-4.18945 1.7781-2.24603 3.06678-4.88493 4.4707-6.81055h.73047a.50005.50005 0 1 0 0-1z"/><path d="m197 199.99609c-.79172 0-1.70536.42738-1.98047 1.35938a.50090117.50090117 0 1 0 .96094.2832c.12417-.42064.57767-.64258 1.01953-.64258.26308 0 .50603.0889.67773.2461.17133.15683.29488.38005.29883.75976.001.2095-.10056.41777-.33789.6875s-.59584.56699-.97656.90235c-.76143.67072-1.65792 1.5571-1.66211 2.90234a.50005.50005 0 0 0 .5.50195h3a.50005.50005 0 1 0 0-1h-2.33398c.18416-.62502.58645-1.15066 1.1582-1.65429.36326-.31999.74752-.62977 1.0664-.99219.31889-.36243.58851-.81103.58594-1.35156a.50005.50005 0 0 0 0-.002c-.006-.61869-.24656-1.14755-.62304-1.49218-.37648-.34464-.8666-.50782-1.35352-.50782z"/></g></g></svg>