Merge pull request #942 from github/grokys/refactor-view-base

Merge SimpleUserControl and BusyStateView.

Author: shana

src/GitHub.UI.Reactive/Assets/Controls.xaml

@@ -11,6 +11,5 @@
         <ResourceDictionary Source="Controls\GitHubTabControl.xaml" />
         <ResourceDictionary Source="Controls\FilteredComboBox.xaml" />
         <ResourceDictionary Source="Controls\GitHubComboBox.xaml" />
-        <ResourceDictionary Source="Controls\BusyStateView.xaml" />
     </ResourceDictionary.MergedDictionaries>
 </ResourceDictionary>