Remove testling

package.json

@@ -39,18 +39,5 @@
     "setimmediate": "1.0.5",
     "simple-asyncify": "1.0.0",
     "tape": "4.9.0"
-  },
-  "testling": {
-    "files": "test/source-map-resolve.js",
-    "browsers": [
-      "ie/8..latest",
-      "chrome/latest",
-      "firefox/latest",
-      "opera/12",
-      "opera/latest",
-      "safari/5",
-      "iphone/6",
-      "android-browser/4"
-    ]
   }
-}
+}

readme.md

@@ -1,8 +1,6 @@
 Overview [![Build Status](https://travis-ci.org/lydell/source-map-resolve.svg?branch=master)](https://travis-ci.org/lydell/source-map-resolve)
 ========
 
-[![browser support](https://ci.testling.com/lydell/source-map-resolve.png)](https://ci.testling.com/lydell/source-map-resolve)
-
 Resolve the source map and/or sources for a generated file.
 
 ```js
@@ -210,9 +208,6 @@ First off, run `npm install` to install testing modules and browser polyfills.
 
 `npm test` lints the code and runs the test suite in Node.js.
 
-To run the tests in a browser, run `testling` (`npm install -g testling`) or
-`testling -u`.
-
 x-package.json5
 ---------------
 

x-package.json5

@@ -41,19 +41,6 @@
         "setimmediate": "1.0.5",
         "simple-asyncify": "1.0.0",
         "tape": "4.9.0"
-      },
-      testling: {
-        files: "test/source-map-resolve.js",
-        browsers: [
-          "ie/8..latest",
-          "chrome/latest",
-          "firefox/latest",
-          "opera/12",
-          "opera/latest",
-          "safari/5",
-          "iphone/6",
-          "android-browser/4"
-        ]
       }
     },
     component: {