microsoft.build evaluation.project delete import

Hello. How i can delete import object from my project?

Obsolete Microsoft.Build.BuildEngine.Project have method "project.Imports.RemoveImport", but Microsoft.Build.Evaluation.Project does not contain this method. 

project.Imports.Remove/RemoveAt doesn't work. 

project.Xml.Imports.Remove has not setter. 

Help me pls.