.free_sta = ath_rate_free_sta,
 };
 
-static void ath_setup_rate_table(struct ath_softc *sc,
-                                struct ath_rate_table *rate_table)
-{
-       int i;
-
-       for (i = 0; i < rate_table->rate_cnt; i++) {
-               u8 cix = rate_table->info[i].ctrl_rate;
-
-               rate_table->info[i].lpAckDuration =
-                       ath9k_hw_computetxtime(sc->sc_ah, rate_table,
-                                              WLAN_CTRL_FRAME_SIZE,
-                                              cix,
-                                              false);
-               rate_table->info[i].spAckDuration =
-                       ath9k_hw_computetxtime(sc->sc_ah, rate_table,
-                                              WLAN_CTRL_FRAME_SIZE,
-                                              cix,
-                                              true);
-       }
-}
-
 void ath_rate_attach(struct ath_softc *sc)
 {
        sc->hw_rate_table[ATH9K_MODE_11B] =
                &ar5416_11ng_ratetable;
        sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS] =
                &ar5416_11ng_ratetable;
-
-       ath_setup_rate_table(sc, &ar5416_11b_ratetable);
-       ath_setup_rate_table(sc, &ar5416_11a_ratetable);
-       ath_setup_rate_table(sc, &ar5416_11g_ratetable);
-       ath_setup_rate_table(sc, &ar5416_11na_ratetable);
-       ath_setup_rate_table(sc, &ar5416_11ng_ratetable);
 }
 
 int ath_rate_control_register(void)