Remove paint/invalidation/spv2

third_party/WebKit/LayoutTests/paint/invalidation/spv2/resources/paint-invalidation-test.js

-// Asynchronous tests should manually call finishPaintInvalidationTest at the appropriate time.
-window.testIsAsync = false;
-
-// All paint invalidation tests are asynchronous from test-runner's point of view.
-if (window.testRunner) {
-    testRunner.waitUntilDone();
-    if (document.location.hash == '#as-text')
-        testRunner.dumpAsText();
-}
-
-function runPaintInvalidationTest()
-{
-    if (!window.testRunner || !window.internals) {
-        setTimeout(paintInvalidationTest, 500);
-        return;
-    }
-
-    testRunner.layoutAndPaintAsyncThen(function()
-    {
-        window.internals.startTrackingPaintInvalidationObjects();
-        paintInvalidationTest();
-        if (!window.testIsAsync)
-            finishPaintInvalidationTest();
-    });
-}
-
-function removeAllChildren(element)
-{
-    while (element.firstChild)
-        element.removeChild(element.firstChild);
-}
-
-function finishPaintInvalidationTest()
-{
-    if (!window.testRunner || !window.internals)
-        return;
-
-    testRunner.layoutAndPaintAsyncThen(function()
-    {
-        testRunner.setCustomTextOutput(JSON.stringify(internals.trackedPaintInvalidationObjects()).replace(/","/g, '",\n "'));
-        testRunner.notifyDone();
-    });
-}