Store scalar version of rolling_eta_secs

vissl/hooks/log_hooks.py

@@ -4,7 +4,6 @@
 All the hooks involved in human-readable logging
 """
 
-import datetime
 import logging
 import time
 from typing import Optional
@@ -197,12 +196,9 @@ def on_update(self, task: "tasks.ClassyTask") -> None:
                     rolling_eta_secs = int(
                         rolling_avg_time * (task.max_iteration - iteration)
                     )
-                    rolling_eta_str = str(
-                        datetime.timedelta(seconds=int(rolling_eta_secs))
-                    )
                     rolling_btime = int(1000.0 * rolling_avg_time)
                     evt_stg.put_scalars(
-                        rolling_btime=rolling_btime, rolling_eta=rolling_eta_str
+                        rolling_btime=rolling_btime, rolling_eta=rolling_eta_secs
                     )
                 for writer in task.event_storage_writers:
                     writer.write()