Unload TMP SDF files runtime ,Unload TextMeshPro SDF based on existing scene.

I have 3 scenes in total. There are some SDF files referenced in 2nd scene which require Japanese support and they consuming around 55-60MB (Profiler memory footprint on Android/iOS). I don’t need these font files in the 3rd Scene neither they are referenced anywhere yet stays in memory.
I am trying to manually unload asset files using Resources.UnloadAsset(TMP_FontAsset) but this doesn’t seems to be effective. Is it even possible to unload SDF files once they are loaded in the memory?
154482-screen-shot-2020-03-18-at-213140.png

Hello! Have you found a solution?