Delete serdes copper parameter!

device/celestica/x86_64-cel_silverstone-r0/Silverstone/th3-32x400G.config.bcm

@@ -220,40 +220,6 @@ dport_map_port_118=34
 
 
 
-serdes_lane_config_media_type_20=copper
-serdes_lane_config_media_type_24=copper
-serdes_lane_config_media_type_28=copper
-serdes_lane_config_media_type_32=copper
-serdes_lane_config_media_type_40=copper
-serdes_lane_config_media_type_44=copper
-serdes_lane_config_media_type_48=copper
-serdes_lane_config_media_type_52=copper
-serdes_lane_config_media_type_1=copper
-serdes_lane_config_media_type_5=copper
-serdes_lane_config_media_type_9=copper
-serdes_lane_config_media_type_13=copper
-serdes_lane_config_media_type_60=copper
-serdes_lane_config_media_type_64=copper
-serdes_lane_config_media_type_68=copper
-serdes_lane_config_media_type_72=copper
-serdes_lane_config_media_type_80=copper
-serdes_lane_config_media_type_84=copper
-serdes_lane_config_media_type_88=copper
-serdes_lane_config_media_type_92=copper
-serdes_lane_config_media_type_140=copper
-serdes_lane_config_media_type_144=copper
-serdes_lane_config_media_type_148=copper
-serdes_lane_config_media_type_152=copper
-serdes_lane_config_media_type_100=copper
-serdes_lane_config_media_type_104=copper
-serdes_lane_config_media_type_108=copper
-serdes_lane_config_media_type_112=copper
-serdes_lane_config_media_type_120=copper
-serdes_lane_config_media_type_124=copper
-serdes_lane_config_media_type_128=copper
-serdes_lane_config_media_type_132=copper
-
-
 core_clock_frequency=1325
 dpr_clock_frequency=1000
 device_clock_frequency=1325