libertas: remove unused indirect TPC_CFG command leftovers

These were no longer used but were left around; Transmit Power
Control is done through the lbs_set_tpc_cfg() function.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/host.h

@@ -965,7 +965,6 @@ struct cmd_ds_command {
 		struct cmd_ds_bbp_reg_access bbpreg;
 		struct cmd_ds_rf_reg_access rfreg;
 
-		struct cmd_ds_802_11_tpc_cfg tpccfg;
 		struct cmd_ds_802_11_afc afc;
 		struct cmd_ds_802_11_led_ctrl ledgpio;