disable testling

package.json

@@ -35,30 +35,6 @@
   "scripts": {
     "test": "grunt build && grunt test"
   },
-  "testling": {
-    "scripts": [
-      "test/browser-runner.js"
-    ],
-    "browsers": [
-      "iexplore/10.0",
-      "iexplore/8.0",
-      "iexplore/9.0",
-      "chrome/21.0",
-      "chrome/29.0",
-      "chrome/canary",
-      "firefox/24.0",
-      "firefox/3.6",
-      "firefox/nightly",
-      "opera/15.0",
-      "opera/next",
-      "safari/5.0.5",
-      "safari/5.1",
-      "safari/6.0",
-      "ipad/6.0",
-      "iphone/6.0",
-      "android-browser/4.2"
-    ]
-  },
   "dependencies": {
     "commoner": "~0.8.4",
     "esprima-fb": "~1001.1001.2000-dev-harmony-fb",