remove built extension api

test-browser/plugin/bundle.js

-(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-'use strict';
-
-var _createClass = function () {
-  function defineProperties(target, props) {
-    for (var i = 0; i < props.length; i++) {
-      var descriptor = props[i];descriptor.enumerable = descriptor.enumerable || false;descriptor.configurable = true;if ("value" in descriptor) descriptor.writable = true;Object.defineProperty(target, descriptor.key, descriptor);
-    }
-  }return function (Constructor, protoProps, staticProps) {
-    if (protoProps) defineProperties(Constructor.prototype, protoProps);if (staticProps) defineProperties(Constructor, staticProps);return Constructor;
-  };
-}();
-
-function _classCallCheck(instance, Constructor) {
-  if (!(instance instanceof Constructor)) {
-    throw new TypeError("Cannot call a class as a function");
-  }
-}
-
-var RemixExtension = function () {
-  function RemixExtension() {
-    var _this = this;
-
-    _classCallCheck(this, RemixExtension);
-
-    this._notifications = {};
-    this._pendingRequests = {};
-    this._id = 0;
-    window.addEventListener('message', function (event) {
-      return _this._newMessage(event);
-    }, false);
-  }
-
-  _createClass(RemixExtension, [{
-    key: 'listen',
-    value: function listen(key, type, callback) {
-      if (!this._notifications[key]) this._notifications[key] = {};
-      this._notifications[key][type] = callback;
-    }
-  }, {
-    key: 'call',
-    value: function call(key, type, params, callback) {
-      this._id++;
-      this._pendingRequests[this._id] = callback;
-      window.parent.postMessage(JSON.stringify({
-        action: 'request',
-        key: key,
-        type: type,
-        value: params,
-        id: this._id
-      }), '*');
-    }
-  }, {
-    key: '_newMessage',
-    value: function _newMessage(event) {
-      if (!event.data) return;
-      if (typeof event.data !== 'string') return;
-
-      var msg;
-      try {
-        msg = JSON.parse(event.data);
-      } catch (e) {
-        return console.log('unable to parse data');
-      }
-      var _msg = msg,
-          action = _msg.action,
-          key = _msg.key,
-          type = _msg.type,
-          value = _msg.value;
-
-      if (action === 'notification') {
-        if (this._notifications[key] && this._notifications[key][type]) {
-          this._notifications[key][type](value);
-        }
-      } else if (action === 'response') {
-        var _msg2 = msg,
-            id = _msg2.id,
-            error = _msg2.error;
-
-        if (this._pendingRequests[id]) {
-          this._pendingRequests[id](error, value);
-          delete this._pendingRequests[id];
-        }
-      }
-    }
-  }]);
-
-  return RemixExtension;
-}();
-
-if (window) window.RemixExtension = RemixExtension;
-if (module && module.exports) module.exports = RemixExtension;
-
-},{}]},{},[1]);