remove ex_thread_safetiness_dict from examples
remove ex_thread_safetiness_dict from examples

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