If dentist grinded enough front top/bottom enamel to eliminate anterior guidance, will bonding or veneers recreate the sensation?

Not necessarily: Bonding and veneers can both be accomplished in such a way as to maintain the desired occlusion. The major limitation is that there must be enough clearance to permit the restorative material adequate thickness for strength. That said, some occlusal schemes are not veneer-friendly and the prognosis for your veneers (both porcelain or composite) is a good discussion point with your dentist.

May self adjust: If the seperation is only slight the teeth may simply self adjust back to contact. Teeth want to be in contact and taking a tooth slightly out of occlusion is usually temporary and it will erupt to touch again. If the teeth or tooth was being traumatized by biting forces letting the tooth find its own happy position as it erupts will re establish functional forces.

Maybe: If somebody wanted to eliminate anterior guidance, it was most likely done to correct an occlusal issue, without doing orthodontics. Placing porcelain into an area that had tooth structure removed for occlusal issues is not a good solution. You should start with an orthodontic consult to make sure your bite is healthy enough for porcelain restorations.

Minor changes: In the mouth often seem magnified. Rather than try to guess exactly what your dentist did, changed, expected to achieve or inadvertently altered is impossible to determine over the internet. I suggest that you discuss this issue with your own dentist. It's quite possible that with some minor adjustments your dentist can make your bite and you comfortable.

Anterior Guidance: There's a huge debate about "anterior guidance" and depends on what your dentist occlusion philosophy is. For example, a kois trained dentist may feel there's a myth about the role of anterior guidance, a dawson trained dentist may love it, and a neuromuscular dentist would not like it. So talk to your dentist.

Yes: Nothing replaces your teeth what is the reason your dentist eliminating anterior guidance.