CSHARP-1096: Remove references to WindowsBase.dll.
CSHARP-1090: Remove references to System.Data.DataSetExtensions.dll.
CSHARP-1096: Remove references to System.ServiceModel.dll.
CSHARP-1096: Remove references to System.Data.dll.
CSHARP-1096: Remove unnecessary references to Microsoft.CSharp.dll.
CSHARP-1096: Remove references to System.Drawing.dll. That also meant removing the DrawingSizeSerializer.
CSHARP-1096: Edit references that were targetting Framework 3.5. That appears to be an artifact of having upgraded projects that originally targetted Framework 3.5.