Revert "Fix skia OpacityMask push and pop methods"
Revert "Fix skia OpacityMask push and pop methods"

This reverts commit dc404b545e534ea904911ca9647f312f77e7ed6d.

AvaloniaUI/Avalonia,SuperJMN/Avalonia,AvaloniaUI/Avalonia,SuperJMN/Avalonia,wieslawsoltes/Perspex,AvaloniaUI/Avalonia,wieslawsoltes/Perspex,AvaloniaUI/Avalonia,wieslawsoltes/Perspex,SuperJMN/Avalonia,SuperJMN/Avalonia,jkoritzinsky/Avalonia,jkoritzinsky/Avalonia,wieslawsoltes/Perspex,jkoritzinsky/Avalonia,grokys/Perspex,wieslawsoltes/Perspex,SuperJMN/Avalonia,SuperJMN/Avalonia,jkoritzinsky/Avalonia,SuperJMN/Avalonia,jkoritzinsky/Perspex,AvaloniaUI/Avalonia,AvaloniaUI/Avalonia,Perspex/Perspex,wieslawsoltes/Perspex,Perspex/Perspex,wieslawsoltes/Perspex,jkoritzinsky/Avalonia,jkoritzinsky/Avalonia,AvaloniaUI/Avalonia,jkoritzinsky/Avalonia,grokys/Perspex