setup: fix error about gl_mock that doesn't exist anymore
setup: fix error about gl_mock that doesn't exist anymore

KeyWeeUsr/kivy,LogicalDash/kivy,bionoid/kivy,Cheaterman/kivy,LogicalDash/kivy,manthansharma/kivy,jegger/kivy,kivy/kivy,manthansharma/kivy,manthansharma/kivy,KeyWeeUsr/kivy,KeyWeeUsr/kivy,matham/kivy,kivy/kivy,kivy/kivy,rnixx/kivy,jegger/kivy,matham/kivy,manthansharma/kivy,akshayaurora/kivy,bionoid/kivy,jegger/kivy,matham/kivy,rnixx/kivy,LogicalDash/kivy,inclement/kivy,LogicalDash/kivy,Cheaterman/kivy,Cheaterman/kivy,bionoid/kivy,inclement/kivy,jegger/kivy,rnixx/kivy,bionoid/kivy,matham/kivy,akshayaurora/kivy,KeyWeeUsr/kivy,Cheaterman/kivy,inclement/kivy,akshayaurora/kivy