Partially revert polyfill changes

It turns out IE10 doesn't have the URL constructor and somehow I
misinterpreted the MDN docs.

The bind polyfill still isn't needed, except by PhantomJS.

It also seems silly not to just include wgxpath without npm. Save
the browserify-ing step.

h/static/scripts/karma.config.js

@@ -30,16 +30,16 @@ module.exports = function(config) {
       'vendor/annotator.js',
       'vendor/katex.js',
 
+      // These are needed until PhantomJS 2.0
+      '../../../node_modules/es6-promise/dist/es6-promise.js',
+      'vendor/bind.js',
+      'vendor/url.js',
+
       // Test deps
       '../../../node_modules/angular-mocks/angular-mocks.js',
       '../../templates/client/*.html',
       'test/bootstrap.js',
 
-      // These are needed until PhantomJS 2.0
-      '../../../node_modules/es6-promise/dist/es6-promise.js',
-      'test/polyfills/bind.js',
-      'test/polyfills/url.js',
-
       // Tests
       '**/*-test.coffee',
       '**/*-test.js'

package.json

@@ -41,8 +41,7 @@
     "raf": "^3.1.0",
     "showdown": "^1.2.1",
     "uglify-js": "^2.4.14",
-    "unorm": "^1.3.3",
-    "wgxpath": "^1.0.0"
+    "unorm": "^1.3.3"
   },
   "devDependencies": {
     "chai": "^3.2.0",