Remove left-over PageCache stuff

LayoutTests/media/crash-closing-page-with-media-as-plugin-fallback.html

Index: LayoutTests/media/crash-closing-page-with-media-as-plugin-fallback.html
diff --git a/LayoutTests/media/crash-closing-page-with-media-as-plugin-fallback.html b/LayoutTests/media/crash-closing-page-with-media-as-plugin-fallback.html
deleted file mode 100644
index 4cb44b1baceaed857cefbc0279e1ffeaef886738..0000000000000000000000000000000000000000
--- a/LayoutTests/media/crash-closing-page-with-media-as-plugin-fallback.html
+++ /dev/null
@@ -1,41 +0,0 @@
-<script>
-var childWindow;
-</script>
-This test makes sure that closing a window with a video element that has a poster image doesn't crash (radar 10576732 and https://bugs.webkit.org/show_bug.cgi?id=74533)<br>
-If it doesn't crash, it passes.<br>
-<button id="button" onclick="childWindow = window.open('resources/video-with-poster-as-object-fallback.html')">
-    Click here to open test window
-</button><br>
-<div id="result"></div><br>
-
-<script>
-if (window.testRunner) {
-    testRunner.dumpAsText();
-    testRunner.waitUntilDone();
-    testRunner.overridePreference("WebKitUsesPageCachePreferenceKey", 1);
-    testRunner.overridePreference("WebKitPageCacheSupportsPluginsPreferenceKey", 1);
-    testRunner.setCanOpenWindows(true);
-    testRunner.setCloseRemainingWindowsWhenComplete(true);
-    var button = document.getElementById("button");
-    eventSender.mouseMoveTo(button.offsetParent.offsetLeft + button.offsetLeft + button.offsetWidth / 2, button.offsetParent.offsetTop +  button.offsetTop + button.offsetHeight / 2);
-    eventSender.mouseDown();
-    eventSender.mouseUp();
-}
-
-function childLoaded()
-{
-    childWindow.close();
-    setTimeout("checkClosed()", 0);
-}
-
-function checkClosed()
-{
-    if (childWindow.closed) {
-        document.getElementById("result").innerText = "Closed the window without crashing!";
-        if (window.testRunner)
-            setTimeout("testRunner.notifyDone();", 0);
-    }
-    setTimeout("checkClosed()", 0);
-}
-
-</script>