Remove <canvas>

sky/tests/clipping/canvas-rounded-corners-expected.txt

Index: sky/tests/clipping/canvas-rounded-corners-expected.txt
diff --git a/sky/tests/clipping/canvas-rounded-corners-expected.txt b/sky/tests/clipping/canvas-rounded-corners-expected.txt
deleted file mode 100644
index 01d6d2f8476835400ff79b707f3e292ec55f6844..0000000000000000000000000000000000000000
--- a/sky/tests/clipping/canvas-rounded-corners-expected.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-layer at (0,0) size 800x600
-  RenderView {#document} at (0,0) size 800x600
-    RenderBlock {sky} at (0,0) size 800x353
-      RenderBlock {h3} at (0,0) size 800x19
-        RenderParagraph (anonymous) at (0,0) size 800x19
-          RenderText {#text} at (0,0) size 92x19
-            text run at (0,0) width 92: "It passes if:"
-      RenderBlock {ul} at (0,19) size 800x57
-        RenderBlock {li} at (0,0) size 800x19
-          RenderParagraph (anonymous) at (0,0) size 800x19
-            RenderText {#text} at (0,0) size 511x19
-              text run at (0,0) width 511: "the canvas content has rounded corners (top-left and top-right)"
-        RenderBlock {li} at (0,19) size 800x19
-          RenderParagraph (anonymous) at (0,0) size 800x19
-            RenderText {#text} at (0,0) size 457x19
-              text run at (0,0) width 457: "the 10px red border is visible around the canvas content"
-        RenderBlock {li} at (0,38) size 800x19
-          RenderParagraph (anonymous) at (0,0) size 800x19
-            RenderText {#text} at (0,0) size 200x19
-              text run at (0,0) width 200: "gray border is not visible"
-layer at (0,76) size 277x277
-  RenderHTMLCanvas {canvas} at (0,76) size 277x277 [bgcolor=#808080] [border: (10px solid #FF0000)]
-