Removed numba.decorators2 module.  It was not being used anyway.
Removed numba.decorators2 module.  It was not being used anyway.

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