Revert "transformed ISO Time into POSIX timestamp (#80)" (#82)

This reverts commit c475324.

Author: Katzmann1983

pytr/utils.py

@@ -351,8 +351,7 @@ async def _get_timeline_details(self, num_torequest, max_age_timestamp=0):
             action = event.get('action')
             # icon = event.get('icon')
             msg = ''
-            timestamp =  timestamp = datetime.fromisoformat(event['timestamp']).timestamp()
-            if max_age_timestamp != 0 and timestamp > max_age_timestamp:
+            if max_age_timestamp != 0 and event['timestamp'] > max_age_timestamp:
                 msg += 'Skip: too old'
             # elif icon is None:
             #     pass