Remove black background from highway shields

svgs/svgs_not_in_iconset/us-highway_2.svg

@@ -6,11 +6,6 @@
 ]>
 <svg  version="1.1" id="Layer_1" xmlns="&ns_svg;" xmlns:xlink="&ns_xlink;" width="30" height="30" viewBox="0 0 600 600"
 	 overflow="visible" enable-background="new 0 0 600 600" xml:space="preserve">
-<g>
-	<path d="M0,50C0,22.3852539,22.3852539,0,50,0h500c27.6142578,0,50,22.3852539,50,50v500c0,27.6142578-22.3857422,50-50,50H50
-		c-27.6147461,0-50-22.3857422-50-50V50L0,50z"/>
-	<path d="M300,300"/>
-</g>
 <g>
 	<path fill-rule="evenodd" clip-rule="evenodd" fill="#FFFFFF" d="M300,10.0024414
 		c23.5644531,20.0751953,54.1171875,32.1914063,87.5,32.1914063S451.4355469,30.0751953,475,10l115,115

svgs/svgs_not_in_iconset/us-highway_3.svg

@@ -7,11 +7,6 @@
 <svg  version="1.1" id="Layer_1" xmlns="&ns_svg;" xmlns:xlink="&ns_xlink;" width="37.5" height="30" viewBox="0 0 750 600"
 	 overflow="visible" enable-background="new 0 0 750 600" xml:space="preserve">
 <g>
-	<g>
-		<path d="M0,50C0,22.3857422,22.3852539,0,50,0h650c27.6142578,0,50,22.3857422,50,50v500c0,27.6152344-22.3857422,50-50,50H50
-			c-27.6147461,0-50-22.3847656-50-50V50L0,50z"/>
-		<path d="M375,300"/>
-	</g>
 	<path fill-rule="evenodd" clip-rule="evenodd" fill="#FFFFFF" d="M375,10.0019531
 		c-36.3276367,22.4638672-79.1499023,35.4287109-125.0004883,35.4287109C204.1494141,45.4306641,161.3271484,32.4638672,125,10
 		L10,125c21.1630859,30.0810547,33.5883789,66.7524414,33.5883789,106.3271484

svgs/svgs_not_in_iconset/us-state_2.svg

@@ -1,20 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg
-	xmlns="http://www.w3.org/2000/svg"
-	version="1.1"
-	width="30"
-	height="30"
-	viewBox="0 0 600 600">
-<rect
-	width="600"
-	height="600"
-	rx="37.5"
-	ry="37.5"
-	style="fill:#000;fill-opacity:1;stroke:none"/>
-<circle
-	r="287.5"
-	cx="300"
-	cy="300"
-	style="fill:#fff;fill-opacity:1;stroke:none"/>
-</svg>
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="30" height="30" viewBox="0 0 600 600">
+	<circle r="287.5" cx="300" cy="300" style="fill:#fff;fill-opacity:1;stroke:none"/>
+</svg>

svgs/svgs_not_in_iconset/us-state_3.svg

@@ -1,21 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg
-	xmlns="http://www.w3.org/2000/svg"
-	version="1.1"
-	width="37.5"
-	height="30"
-	viewBox="0 0 750 600">
-<rect
-	width="750"
-	height="600"
-	rx="37.5"
-	ry="37.5"
-	style="fill:#000;fill-opacity:1;stroke:none"/>
-<ellipse
-	rx="362.5"
-	ry="287.5"
-	cx="375"
-	cy="300"
-	style="fill:#fff;fill-opacity:1;stroke:none"/>
-</svg>
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="37.5" height="30" viewBox="0 0 750 600">
+	<ellipse rx="362.5" ry="287.5" cx="375" cy="300" style="fill:#fff;fill-opacity:1;stroke:none"/>
+</svg>