Sauce Walka conjures up the past in his latest swipe at Young Thug. Sauce Walka isn’t done jousting with Young Thug over the use of the term “Slime.” It’s plain to see, Sauce Walka is standing in a most unyielding position. It’s no secret Walka has a bone to pick with the music industry ever since it’s become “de-centralized,” that’s for certain. Evidently, he …