Testing requirements are still in place for those in close proximity to the president and passengers aboard Air Force One, including for the upcoming trip to India. But the stringent monitoring that prevailed in the early days of the administration has eased significantly.
Even with full vaccine coverage, we wouldn't be able to fully eradicate sars-cov-2 at this point. It's too contagious and its rate of mutation is too high.
It's a completely different virus to polio, so a direct comparison is pretty pointless.