"Regulations" as it is being used with Trump is a bs talking point to get around the cognitive dissonance of trying to give Trump credit for the economy while ignoring the reality that he hasn't passed any legislation related to the economy, so the talking point is he has cut "regulations".
I have yet to see a single regulation that was cut that can be attributable to economic growth. I have asked people who cite cut regulations to name one regulation off the top of their head that he has cut, and they can't do it because they don't know which regulations he has cut, nor do they care which regulations he has cut, it is just a bs talking point.