remove the ability to add game on the studio

Instructions

There Is currently 14 prize givers. Prizegivers: @iamcool718 @iacool718_test @qwertyuiopx2 @goodatclaping @willa1900 @appleo123iscool @twzf2u @Orange_ree @hodgeonscratch @-Burger-OS- @hodgeonalt @HS-Draws @hodgeonscratch-OS @iamthefirstscratcher https://scratch.mit.edu/studios/32933174/