Revert "potential fix pepkit/peppy#459"

This reverts commit 281cef4.

Author: donaldcampbelljr

looper/project.py

@@ -725,8 +725,6 @@ def _samples_by_piface(self, piface_key):
                     else:
                         samples_by_piface.setdefault(source, set())
                         samples_by_piface[source].add(sample[self.sample_table_index])
-                        sample.sample_name = sample[self.sample_table_index]
-
         for msg in msgs:
             _LOGGER.warning(msg)
         return samples_by_piface