Actually, It can removed but after reboot the switch(Stacking) it come back.
Command is
class-map match-any non-client-nrt-class
!
policy-map port_child_policy
class non-client-nrt-class
bandwidth remaining ratio 10
!
It didn't show in startup-config but it still in running-config.
If remove it when switch running it disappeared. But after I reload the switch it come back!
Switches are..
Switch Ports Model SW Version SW Image Mode
------ ----- ----- ---------- ---------- ----
* 1 32 WS-C3850-24T 03.06.06E cat3k_caa-universalk9 INSTALL
2 32 WS-C3850-24T 03.06.06E cat3k_caa-universalk9 INSTALL