How To Avoid Generating New Properties In Release Build

I have a form and I drag and drop a control in VB.NET. I have a line say,
private WithEvents radioButton RadioButton

Also, I have a handler like,
private void click(.....) Handles radioButton.Click {
...
}

Now, When I build this is .NET 3.5 in release mode, and see the generated code in reflector tool, the code is something like:
Private Overridable Property radioButton As RadioButton
.
.
.
<AccessedThroughProperty("radioButton")> _
Private _radioButton As RadioButton
And how do I avoid the generation of new properties and fields?