Gervonta 'Tank' Davis Says He's Gonna 'Take Over Boxing' Before UFC Domination

[[tmz:video id="0_itckpwhc"]] Gervonta "Tank" Davis made it known that he wants to smash on UFC fighters -- but before that, he says he's gotta remind the boxing world why he's known as the "mini Mike Tyson." "I have to prove myself to show…