Remove redundant row

Author: bundyo

demo/app/examples/styling/styling-page.xml

@@ -1,5 +1,5 @@
 <navigation:ExamplePage loaded="pageLoaded" xmlns:navigation="navigation/example-page"  xmlns="http://www.nativescript.org/tns.xsd" xmlns:picker="nativescript-picker">
-	<GridLayout rows="50, 50, *">
+	<GridLayout rows="50, *">
 		<picker:PickerField hint="This is hint" id="picker"
 								padding="10"
 								class="picker-field"