An advice : Remove code behind files in WPF

In WPF when using MVVM it is better to delete the code behind file straight away. Those almost empty code files are not necessary at all and the project will compile without them. Moreover, if you have removed the code behind file an press F7 key, then nothing happens. It matters to me because I have a habit to press F7 to navigate to code related to XAML, and doing so it always opens code behind file which is not desired.