Revert _sample_decode print_out fixes for issue #175 and issue #169, we have already done the utf-8 converting in the `print_out` method, so the error seems come from other sources.
Revert _sample_decode print_out fixes for issue #175 and issue #169, we have already done the utf-8 converting in the `print_out` method, so the error seems come from other sources.

Fixes #182

PiperOrigin-RevId: 177048472

tensorflow/nmt,tensorflow/nmt