remove unnecessary test on macOS jobs
remove unnecessary test on macOS jobs

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