Remove Immutable JS

src/components/map/Map.jsx

@@ -1,17 +1,11 @@
 import React from 'react'
-import Immutable from 'immutable'
 
 export default class Map extends React.Component {
   static propTypes = {
-    mapStyle: React.PropTypes.instanceOf(Immutable.Map).isRequired,
+    mapStyle: React.PropTypes.object.isRequired,
     accessToken: React.PropTypes.string,
   }
 
-  shouldComponentUpdate(nextProps, nextState) {
-    //TODO: If we enable this React mixin for immutable comparison we can remove this?
-    return nextProps.mapStyle !== this.props.mapStyle
-  }
-
   render() {
     return <div
     ref={x => this.container = x}

src/components/map/MapboxGlMap.jsx

@@ -23,7 +23,7 @@ export default class MapboxGlMap extends Map {
 
     //Mapbox GL now does diffing natively so we don't need to calculate
     //the necessary operations ourselves!
-    this.state.map.setStyle(style.toJSON(nextProps.mapStyle), { diff: true})
+    this.state.map.setStyle(nextProps.mapStyle, { diff: true})
   }
 
   componentDidMount() {
@@ -31,7 +31,7 @@ export default class MapboxGlMap extends Map {
 
     const map = new MapboxGl.Map({
       container: this.container,
-      style: style.toJSON(this.props.mapStyle),
+      style: this.props.mapStyle,
     });
 
     map.on("style.load", (...args) => {