In the **/bin/debug** folder of my solution I've noticed a slew of what appear to be foreign language folders with names like "ar", "bg", "ca", "cs", "da"... all the way to "zh-Hant". The folders each have copies of these 4 DLLs:

* System.ComponentModel.DataAnnotations.resources.dll
* System.Windows.Controls.Data.Input.resources.dll
* System.Windows.Controls.Data.resources.dll
* System.Windows.Controls.resources.dll

The Silverlight application I'm developing doesn't have any internationalization support, so I can't figure out how these files and folders got there. All in all, it's almost 13 MB of files.

Worse yet, when I delete them, they are regenerated the next time I build the solution.

Any advice?

**ETA:**

Here's the list of DLLs referenced by the Silverlight project:

* ESRI.ArcGIS.Client
* ESRI.ArcGIS.Client.Toolkit
* mscorlib
* system
* System.Core
* System.Net
* System.Runtime.Serialization
* System.ServiceModel
* System.Windows
* System.Windows.Browser
* System.Windows.Controls
* System.Windows.Controls.Layout.Toolkit
* System.Windows.Controls.Navigation
* System.Windows.Interactivity
* System.Xml