Removed unfinished sentence (#5522)

Author: Ron Petrusha

docs/framework/whats-new/index.md

@@ -654,8 +654,6 @@ End Class
 | ------------------------------------ | ----------------------------------------- |
 | The rating must be between 1 and 10. | La note doit être comprise entre 1 et 10. |
 
- This file can then
-
  In addition, data annotation localization is extensible. Developers can plug in their own string localizer provider by implementing the <xref:System.Web.Globalization.IStringLocalizerProvider> interface to store localization string somewhere other than in a resource file.
 
  **Async support with session-state store providers**