Fixed MMU3 Idler Body and Pulley Body Without those squares

I could print all the MMU3 parts without issue but the Idler and Pulley body would fail every time as it printed those levitating squares. Some say they're to help the part remove from the sheet but if I go to the parts once the bed has cooled down then they slide right off. I've started printing this model without the squares and it's worked first time.

Removed the squares on the bottom of the Idler and Pulley body.