do not log useless errors like [Errno 2] No such file or directory

slapos/grid/slapgrid.py

@@ -1228,18 +1228,6 @@ stderr_logfile_backups=1
           (computer_partition_id, computer_partition_state)
         computer_partition.error(error_string, logger=self.logger)
         raise NotImplementedError(error_string)
-    except Exception as e:
-      if not isinstance(e, PromiseError):
-        with open(error_output_file, 'w') as error_file:
-          # Write error message in a log file assible to computer partition user
-          error_file.write(str(e))
-        if computer_partition_state == COMPUTER_PARTITION_STARTED_STATE:
-          try:
-            self._checkPromiseList(local_partition)
-          except PromiseError:
-            # updating promises state, no need to raise here
-            pass
-      raise e
     finally:
       self.logger.removeHandler(partition_file_handler)
       partition_file_handler.close()