Remove comments from manifest file.

The browser handles it fine but the chrome web store chokes on upload.

Signed-off-by: ephphatha <ephphatha@thelettereph.com>

manifest.json

@@ -1,30 +1,21 @@
 {
-  // Required
   "manifest_version": 2,
   "name": "Open as Popup",
   "version": "1.0",
-
-  // Recommended
   "description": "Open the current tab in a popup window",
   "icons": {
     "128": "icon128.png",
     "32": "icon32.png"
   },
-
-  // Pick one (or none)
   "browser_action": {
     "default_icon": "icon128.png"
   },
-
-  // Optional
   "author": "ephphatha",
   "background": {
     "scripts": ["event.js"],
-    // Recommended
     "persistent": false
   },
   "homepage_url": "https://thelettereph.com",
-  //"incognito": "split",
   "minimum_chrome_version": "22",
   "short_name": "Popup"
 }