Remove everthing except conformance tests in the deps/third_party/webgl

third_party/webgl/sdk/tests/conformance/resources/glsl-feature-tests.css

Index: third_party/webgl/sdk/tests/conformance/resources/glsl-feature-tests.css
===================================================================
--- third_party/webgl/sdk/tests/conformance/resources/glsl-feature-tests.css	(revision 121077)
+++ third_party/webgl/sdk/tests/conformance/resources/glsl-feature-tests.css	(working copy)
@@ -1,26 +0,0 @@
-canvas {
-  background-color: white;
-  background-image: linear-gradient(0, rgba(200, 200, 200, .5) 50%, transparent 50%), linear-gradient(rgba(200, 200, 200, .5) 50%, transparent 50%);
-  background-size: 8px 8px;
-}
-
-.shader-source {
-  border: 1px dashed black;
-  padding: 1em;
-}
-
-.shader-source li:nth-child(odd) { background: #f8f8f8; }
-.shader-source li:nth-child(even) { background: #f0f0f0; }
-
-.testimages {
-}
-
-.testimages br {
-  clear: both;
-}
-
-.testimages > div {
-  float: left;
-  margin: 1em;
-}
-