Removed unused servertools.BlockId class.
Removed unused servertools.BlockId class.

andrewyoung1991/supriya,Pulgama/supriya,andrewyoung1991/supriya,josiah-wolf-oberholtzer/supriya,Pulgama/supriya,Pulgama/supriya,Pulgama/supriya,andrewyoung1991/supriya