Downgrade "Assigning param_group " msg to DEBUG

Summary: <See title>

Reviewed By: bottler

Differential Revision: D41534524

fbshipit-source-id: 9c39198b9b8d5fc95f857b03ad39bfe0bd720cbb

projects/implicitron_trainer/impl/optimizer_factory.py

@@ -304,7 +304,7 @@ def traverse(module, default_group: str, mapping: Dict[str, str]) -> None:
             for name, param in module.named_parameters(recurse=False):
                 if param.requires_grad:
                     group_name = mapping.get(name, default_group)
-                    logger.info(f"Assigning {name} to param_group {group_name}")
+                    logger.debug(f"Assigning {name} to param_group {group_name}")
                     param_groups[group_name].append(param)
 
             # If children have defined default param group then use it else pass