Clean up stock_app.dart

sky/framework/components/icon.dart

Index: sky/framework/components/icon.dart
diff --git a/sky/framework/components/icon.dart b/sky/framework/components/icon.dart
index 293b805c69cd01842cd0cba200f68362ff7f1e47..cae1025c9e1b14da3a6dbc1ce13d4a85a718f01d 100644
--- a/sky/framework/components/icon.dart
+++ b/sky/framework/components/icon.dart
@@ -8,13 +8,11 @@ import '../fn.dart';
 const String kAssetBase = '/packages/sky/assets/material-design-icons';
 
 class Icon extends Component {
-  Style style;
   int size;
   String type;
 
   Icon({
     String key,
-    this.style,
     this.size,
     this.type: ''
   }) : super(key: key);
@@ -28,11 +26,7 @@ class Icon extends Component {
       subtype = parts[1];
     }
 
-    return new Image(
-      style: style,
-      width: size,
-      height: size,
-      src: '${kAssetBase}/${category}/2x_web/ic_${subtype}_${size}dp.png'
-    );
+    return new Image(width: size, height: size,
+      src: '${kAssetBase}/${category}/2x_web/ic_${subtype}_${size}dp.png');
   }
 }