Remove webarchive tests.

LayoutTests/svg/webarchive/svg-cursor-subresources.svg

Index: LayoutTests/svg/webarchive/svg-cursor-subresources.svg
diff --git a/LayoutTests/svg/webarchive/svg-cursor-subresources.svg b/LayoutTests/svg/webarchive/svg-cursor-subresources.svg
deleted file mode 100644
index 80cc4d871b18c3f0a3a6db76aba5ea44b62911ff..0000000000000000000000000000000000000000
--- a/LayoutTests/svg/webarchive/svg-cursor-subresources.svg
+++ /dev/null
@@ -1,16 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-  <cursor id="mycursor" xlink:href="resources/green-checker.png" />
-  <rect style="cursor: url(#mycursor)" width="100" height="100" fill="white" stroke="blue" />
-  
-  <text x="10" y="130">Hover over the rect, you should see a (large) custom cursor</text>
-  <script>
-    if (window.testRunner) {
-        testRunner.waitUntilDone();
-
-        setTimeout(function() {
-            testRunner.dumpDOMAsWebArchive();
-            testRunner.notifyDone();
-        }, 0);
-    }
- </script>
-</svg>