Removes unused code.

Author: ctrlplusb

src/AsyncComponentProvider.js

@@ -25,9 +25,6 @@ class AsyncComponentProvider extends React.Component {
           this.id += 1;
           return this.id;
         },
-        registerComponent: (id, Component) => {
-          this.props.execContext.registerComponent(id, Component);
-        },
         getComponent: id => this.props.execContext.getComponent(id),
       },
     };
@@ -41,15 +38,13 @@ class AsyncComponentProvider extends React.Component {
 AsyncComponentProvider.propTypes = {
   children: React.PropTypes.node.isRequired,
   execContext: React.PropTypes.shape({
-    registerComponent: React.PropTypes.func.isRequired,
     getComponent: React.PropTypes.func.isRequired,
   }).isRequired,
 };
 
 AsyncComponentProvider.childContextTypes = {
   asyncComponents: React.PropTypes.shape({
     nextId: React.PropTypes.func.isRequired,
-    registerComponent: React.PropTypes.func.isRequired,
     getComponent: React.PropTypes.func.isRequired,
   }).isRequired,
 };

src/createAsyncComponent.js

@@ -65,9 +65,7 @@ function createAsyncComponent(args) {
     resolveComponent() {
       return getResolver().then(Component =>
         this.setState({
-          Component: es6Aware
-            ? es6Resolve(Component)
-            : Component,
+          Component: es6Resolve(Component),
         }),
       );
     }
@@ -86,7 +84,6 @@ function createAsyncComponent(args) {
   AsyncComponent.contextTypes = {
     asyncComponents: React.PropTypes.shape({
       nextId: React.PropTypes.func.isRequired,
-      registerComponent: React.PropTypes.func.isRequired,
       getComponent: React.PropTypes.func.isRequired,
     }),
   };

src/types.js

@@ -14,7 +14,6 @@ export type ExecContext = {
 export type ProviderChildContext = {
   asyncComponents: {
     nextId : () => number,
-    registerComponent : (number, Function) => void,
     getComponent : (number) => ?Function,
   }
 };