How to turn off the shadow on skins in Minecraft?

I currently have an invisible skin in Minecraft and I always sneak so that my gamertag can't be seen. However, I always stand out because there's always a circular shadow under every skin as well as mine. That's why I wanted to ask if you can turn it off.

If the Minecraft client knows where you are from other players, it automatically renders a shadow in exposed areas.

You could theoretically reprogram it so that you can no longer see your shadow yourself, but the others will still see it as long as the server tells them where you are