The FDB timestamps are not being utilized. This commit removes the
unused timestamp support from ksz8_r_dyn_mac_table() function.
Reviewed-by: Vladimir Oltean <olteanv@xxxxxxxxx>
Acked-by: Arun Ramadoss <arun.ramadoss@xxxxxxxxxxxxx>
Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>