Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/wireless/mediatek/mt76/mt76x0/phy.c: In function mt76x0_phy_rf_init:
drivers/net/wireless/mediatek/mt76/mt76x0/phy.c:1158:5: warning: variable val set but not used [-Wunused-but-set-variable]
Fixes: 10de7a8b4ab9 ("mt76x0: phy files")
Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
 static void mt76x0_phy_rf_init(struct mt76x02_dev *dev)
 {
        int i;
-       u8 val;
 
        mt76x0_rf_patch_reg_array(dev, mt76x0_rf_central_tab,
                                  ARRAY_SIZE(mt76x0_rf_central_tab));
         */
        mt76x0_rf_wr(dev, MT_RF(0, 22),
                     min_t(u8, dev->cal.rx.freq_offset, 0xbf));
-       val = mt76x0_rf_rr(dev, MT_RF(0, 22));
+       mt76x0_rf_rr(dev, MT_RF(0, 22));
 
        /* Reset procedure DAC during power-up:
         * - set B0.R73<7>