use shared prompt

MediaBrowser.WebDashboard/MediaBrowser.WebDashboard.csproj

@@ -161,9 +161,6 @@
     <Content Include="dashboard-ui\components\playlisteditor\playlisteditor.js">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
-    <Content Include="dashboard-ui\components\prompt.js">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
     <Content Include="dashboard-ui\components\tvguide\tvguide.js">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>