Support id and type switching

src/components/layers/LayerList.jsx

@@ -1,5 +1,4 @@
 import React from 'react'
-import PureRenderMixin from 'react-addons-pure-render-mixin';
 import cloneDeep from 'lodash.clonedeep'
 
 import LayerListItem from './LayerListItem'
@@ -24,11 +23,6 @@ class LayerListContainer extends React.Component {
     onLayerSelect: () => {},
   }
 
-  constructor(props) {
-    super(props)
-    this.shouldComponentUpdate = PureRenderMixin.shouldComponentUpdate.bind(this);
-  }
-
   onLayerDestroy(layerId) {
     const remainingLayers = this.props.layers.slice(0)
     const idx = style.indexOfLayer(remainingLayers, layerId)
@@ -87,11 +81,6 @@ class LayerListContainer extends React.Component {
 export default class LayerList extends React.Component {
   static propTypes = {...layerListPropTypes}
 
-  constructor(props) {
-    super(props)
-    this.shouldComponentUpdate = PureRenderMixin.shouldComponentUpdate.bind(this);
-  }
-
   onSortEnd(move) {
     const { oldIndex, newIndex } = move
     if(oldIndex === newIndex) return