[ReactNative] s/Image.sourcePropType/Image.propTypes.source/

Libraries/Components/TabBarIOS/TabBarItemIOS.ios.js

@@ -18,7 +18,7 @@ var merge = require('merge');
 
 var TabBarItemIOS = React.createClass({
   propTypes: {
-    icon: Image.sourcePropType.isRequired,
+    icon: Image.propTypes.source.isRequired,
     onPress: React.PropTypes.func.isRequired,
     selected: React.PropTypes.bool.isRequired,
     badgeValue: React.PropTypes.string,

Libraries/Image/Image.ios.js

@@ -80,7 +80,6 @@ var Image = React.createClass({
 
   statics: {
     resizeMode: ImageResizeMode,
-    sourcePropType: ImageSourcePropType,
   },
 
   mixins: [NativeMethodsMixin],