Fix #515 remove Directory upload

In hindsight Directory Upload is probably too unstable to include. It has changed since including in the test and web developers are using WebkitDirectory so browsers have implemented that instead.

It is probably better to include this again once/if it gets merged in File API or HTML.

Author: dstorey

scripts/9/data.js

@@ -762,12 +762,6 @@ var tests = [
 														name: 		'<code>files</code> property',
 														value:		1,
 														url:		'http://www.w3.org/TR/html5/forms.html#dom-input-files'
-													}, {
-														id:			'directory',
-														status:		'experimental',
-														name: 		'Directory upload support',
-														value:		1,
-														url:		'https://wicg.github.io/directory-upload/proposal.html'
 													}
 												]
 									}, {

scripts/9/engine.js

@@ -859,11 +859,6 @@ Test9 = (function () {
                 key: 'form.file.files',
                 passed: element.files && element.files instanceof FileList
             });
-
-            results.addItem({
-                key: 'form.file.directory',
-                passed: 'directory' in element && window.Directory
-            });
         },