Delete a bunch of NPAPI layout tests.

LayoutTests/plugins/resources/js-from-destroy-frame.html

Index: LayoutTests/plugins/resources/js-from-destroy-frame.html
diff --git a/LayoutTests/plugins/resources/js-from-destroy-frame.html b/LayoutTests/plugins/resources/js-from-destroy-frame.html
deleted file mode 100644
index 4347da0351b997961aa41775386c2ad354f6c18f..0000000000000000000000000000000000000000
--- a/LayoutTests/plugins/resources/js-from-destroy-frame.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<div id=playground></div>
-<embed id="plg" type="application/x-webkit-test-netscape" ondestroy="pluginDestroyed()"></embed>
-<script>
-function pluginDestroyed()
-{
-    try {
-        var req = new XMLHttpRequest;
-        req.open("GET", "/", true);
-        req.send();
-
-        document.referrer;
-
-        document.getElementById("playground").innerHTML = "<div onclick='alert(0)'></div>"
-    } catch (ex) {
-        alert("Unexpected exception: " + ex);
-    }
-}
-
-</script>