Remove left-over PageCache stuff

LayoutTests/http/tests/navigation/resources/https-in-page-cache-2.php

Index: LayoutTests/http/tests/navigation/resources/https-in-page-cache-2.php
diff --git a/LayoutTests/http/tests/navigation/resources/https-in-page-cache-2.php b/LayoutTests/http/tests/navigation/resources/https-in-page-cache-2.php
deleted file mode 100644
index f9953dbb465073cebaa36fa9cf4862078d336f60..0000000000000000000000000000000000000000
--- a/LayoutTests/http/tests/navigation/resources/https-in-page-cache-2.php
+++ /dev/null
@@ -1,32 +0,0 @@
-<?php
-header("cache-control: no-cache");
-?>
-<script>
-
-function nextTest() {
-	if (window.sessionStorage.https_in_page_cache_started)
-		delete window.sessionStorage.https_in_page_cache_started;
-	location = "https://127.0.0.1:8443/navigation/resources/https-in-page-cache-3.html";
-}
-
-window.onpageshow = function(evt) {
-	if (evt.persisted) {
-		alert("The page was restored from the page cache. It should NOT have been. Running part 3 of the test.");
-		nextTest();
-	}
-}
-
-window.onload = function() {
-	if (window.sessionStorage.https_in_page_cache_started) {
-		alert("The page was reloaded on back, not from the page cache. Good job. Running part 3 of the test.");
-		nextTest();
-		return;
-	}
-
-	alert("This page is https and has the no-cache cache-control directive. It should NOT go in to the page cache.");
-	window.sessionStorage.https_in_page_cache_started = true;
-	setTimeout('window.location = "go-back.html"', 0);
-
-}
-
-</script>