Add max_cooperative_grid_blocks function
Add max_cooperative_grid_blocks function

Also remove some old debugging prints.

IntelLabs/numba,gmarkall/numba,gmarkall/numba,numba/numba,numba/numba,stuartarchibald/numba,stuartarchibald/numba,cpcloud/numba,stonebig/numba,seibert/numba,stonebig/numba,seibert/numba,gmarkall/numba,IntelLabs/numba,seibert/numba,stuartarchibald/numba,gmarkall/numba,cpcloud/numba,IntelLabs/numba,cpcloud/numba,IntelLabs/numba,numba/numba,numba/numba,cpcloud/numba,seibert/numba,stuartarchibald/numba,stonebig/numba,cpcloud/numba,stonebig/numba,stonebig/numba,numba/numba,gmarkall/numba,stuartarchibald/numba,seibert/numba,IntelLabs/numba