If they are not fertile eggs they should be good to eat. They haven't started developing. The risk is that bacteria can get inside the egg and develop, whether the egg is fertile or not. Hens can lay eggs in a hidden nest for two weeks and then incubate them for three weeks (ducks and turkeys for longer) and it is pretty rare for one to go bad. In any case with our eggs I think it is a good idea to break them in a separate bowl before you use them, whether a broody is involved or not. If they have started to go bad you will smell them.
When I was a kid many decades ago one of my chores was to collect the eggs. If we had a broody hen we'd mark the eggs we wanted her to hatch and every day after they had all laid I'd check under the broody to remove any that were laid that day. They were still good to eat. Some broody hens could be pretty brutal, most would peck and that could hurt. But I'd pick them out of the nest and toss them on the coop floor anyway. No way was I going to tell Dad or Mom that I was afraid of a chicken.
I don't know what your nests look like or how hard it is to pull that broody Silkie out. It may be a bit hard to physically remove her so you may need to be a bit careful, but it will not hurt her emotionally to take her off the nest and remove the eggs. You do not need to pipe in Dr. Phil or bring out the big guns and show her reruns of Oprah to mend her psyche. It will not harm her mentally though she won't be happy. You might want to wear long sleeves and gloves if she is protective of her nest, just be careful you do not physically harm her if the opening to the nest is tight. You might just want to reach in there an raise her up.
If you do not want more chicks I'd break her from being broody for various reasons. It is less disruptive to you and the flock, it gets her back to producing eggs instead of free-loading, and avoids risk to her health if she decides to stay broody for months. I use a raised wire bottomed cage but don't have Aart's spare time to hang around waiting for a chicken to decide if she is going back to the nest or not so I leave her locked up 72 hours before I let her out. (I've teased
@aart about that before).
If you want more chicks you can find fertile eggs to let her hatch. Or you can get day old chicks to let her raise. If you haven't done this before let us know what you want to do and we may be able to help. But in any case I think you would be wise to invest in a broody buster, you will probably need it.
Good luck! I hope my teasing about Oprah did not offend you.