Remove unused astformat import.
Remove unused astformat import.

pombredanne/numba,seibert/numba,pombredanne/numba,stuartarchibald/numba,stefanseefeld/numba,GaZ3ll3/numba,gmarkall/numba,pitrou/numba,GaZ3ll3/numba,cpcloud/numba,GaZ3ll3/numba,numba/numba,gdementen/numba,stuartarchibald/numba,IntelLabs/numba,seibert/numba,shiquanwang/numba,cpcloud/numba,gdementen/numba,gmarkall/numba,gmarkall/numba,jriehl/numba,jriehl/numba,cpcloud/numba,numba/numba,numba/numba,stuartarchibald/numba,ssarangi/numba,shiquanwang/numba,stefanseefeld/numba,seibert/numba,stonebig/numba,ssarangi/numba,GaZ3ll3/numba,cpcloud/numba,pombredanne/numba,GaZ3ll3/numba,sklam/numba,pitrou/numba,pombredanne/numba,jriehl/numba,IntelLabs/numba,numba/numba,stuartarchibald/numba,jriehl/numba,stefanseefeld/numba,stefanseefeld/numba,gmarkall/numba,gmarkall/numba,seibert/numba,pitrou/numba,seibert/numba,jriehl/numba,IntelLabs/numba,ssarangi/numba,stonebig/numba,stefanseefeld/numba,pitrou/numba,sklam/numba,gdementen/numba,ssarangi/numba,numba/numba,cpcloud/numba,pitrou/numba,stonebig/numba,IntelLabs/numba,stuartarchibald/numba,sklam/numba,ssarangi/numba,stonebig/numba,sklam/numba,stonebig/numba,gdementen/numba,shiquanwang/numba,sklam/numba,pombredanne/numba,IntelLabs/numba,gdementen/numba