Gaussian DOF Deprecated in UE4.21. How to avoid warning?

I’m using Gaussian DOF on mobile, and I get a warning when I build on Windows because it is deprecated in UE4.21.

Continue to support mobile in comments.

DEPRECATED(4.21, “This property is now deprecated, please use circle DOF method for deferred shading renderer. Mobile renderer still support Gaussian method.”)

What should I do to avoid this warnning on windows build?