Scuffed my flywheel with a grinder...is this a problem?

[WM20650]

Hello,

I'm swapping the engine in my '80 240D and had to grind the head off of one of the flywheel bolts on my old engine in order to swap the flywheel onto the new engine. In the process, i managed to scuff the hub of the flywheel with the grinder. The damage seems superficial, but is this the type of situation where even the slightest damage means I need to replace the flywheel for balance reasons? Thanks for any help, pics of the damage are below.