Two issues. These may just be early erupted teeth and your removal may cause a gap that creates problems later. If so they would be firmly attached. If they are very loose, and almost ready to fall out, they could be sucked into the newborns lungs and cause real problems, these are easy to lift out with almost no effort. Discuss with the doc who can guide you.
Nothing. These are prenatal teeth. If in the xray deciduous teeth are seen beneath them these teeth will fall of when the deciduous teeth erupt.
Don't. They usually fall out by themselves. Don't risk removing them yourself and causing harm.