Remove warning node for unused variables after type inference
Remove warning node for unused variables after type inference

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