brcmsmac: remove set but not used variables 'phybw40, maxtargetpwr'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:1202:5: warning: variable 'phybw40' set but not used [-Wunused-but-set-variable]
drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:4625:5: warning: variable 'phybw40' set but not used [-Wunused-but-set-variable]
drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:4834:5: warning: variable 'phybw40' set but not used [-Wunused-but-set-variable]

drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:3085:17: warning: variable 'maxtargetpwr' set but not used [-Wunused-but-set-variable]
drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c:4215:17: warning: variable 'maxtargetpwr' set but not used [-Wunused-but-set-variable]
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c

@@ -1199,8 +1199,6 @@ wlc_lcnphy_rx_iq_est(struct brcms_phy *pi,
 {
 	int wait_count = 0;
 	bool result = true;
-	u8 phybw40;
-	phybw40 = CHSPEC_IS40(pi->radio_chanspec);
 
 	mod_phy_reg(pi, 0x6da, (0x1 << 5), (1) << 5);
 
@@ -3082,7 +3080,7 @@ static void wlc_lcnphy_tx_pwr_ctrl_init(struct brcms_phy_pub *ppi)
 	u8 bbmult;
 	struct phytbl_info tab;
 	s32 a1, b0, b1;
-	s32 tssi, pwr, maxtargetpwr, mintargetpwr;
+	s32 tssi, pwr, mintargetpwr;
 	bool suspend;
 	struct brcms_phy *pi = container_of(ppi, struct brcms_phy, pubpi_ro);
 
@@ -3119,7 +3117,6 @@ static void wlc_lcnphy_tx_pwr_ctrl_init(struct brcms_phy_pub *ppi)
 		b0 = pi->txpa_2g[0];
 		b1 = pi->txpa_2g[1];
 		a1 = pi->txpa_2g[2];
-		maxtargetpwr = wlc_lcnphy_tssi2dbm(10, a1, b0, b1);
 		mintargetpwr = wlc_lcnphy_tssi2dbm(125, a1, b0, b1);
 
 		tab.tbl_id = LCNPHY_TBL_ID_TXPWRCTL;
@@ -4212,7 +4209,7 @@ static void wlc_lcnphy_periodic_cal(struct brcms_phy *pi)
 	s8 index;
 	struct phytbl_info tab;
 	s32 a1, b0, b1;
-	s32 tssi, pwr, maxtargetpwr, mintargetpwr;
+	s32 tssi, pwr, mintargetpwr;
 	struct brcms_phy_lcnphy *pi_lcn = pi->u.pi_lcnphy;
 
 	pi->phy_lastcal = pi->sh->now;
@@ -4249,7 +4246,6 @@ static void wlc_lcnphy_periodic_cal(struct brcms_phy *pi)
 		b0 = pi->txpa_2g[0];
 		b1 = pi->txpa_2g[1];
 		a1 = pi->txpa_2g[2];
-		maxtargetpwr = wlc_lcnphy_tssi2dbm(10, a1, b0, b1);
 		mintargetpwr = wlc_lcnphy_tssi2dbm(125, a1, b0, b1);
 
 		tab.tbl_id = LCNPHY_TBL_ID_TXPWRCTL;
@@ -4622,13 +4618,10 @@ static void wlc_lcnphy_radio_init(struct brcms_phy *pi)
 static void wlc_lcnphy_tbl_init(struct brcms_phy *pi)
 {
 	uint idx;
-	u8 phybw40;
 	struct phytbl_info tab;
 	const struct phytbl_info *tb;
 	u32 val;
 
-	phybw40 = CHSPEC_IS40(pi->radio_chanspec);
-
 	for (idx = 0; idx < dot11lcnphytbl_info_sz_rev0; idx++)
 		wlc_lcnphy_write_table(pi, &dot11lcnphytbl_info_rev0[idx]);
 
@@ -4831,9 +4824,7 @@ static void wlc_lcnphy_baseband_init(struct brcms_phy *pi)
 
 void wlc_phy_init_lcnphy(struct brcms_phy *pi)
 {
-	u8 phybw40;
 	struct brcms_phy_lcnphy *pi_lcn = pi->u.pi_lcnphy;
-	phybw40 = CHSPEC_IS40(pi->radio_chanspec);
 
 	pi_lcn->lcnphy_cal_counter = 0;
 	pi_lcn->lcnphy_cal_temper = pi_lcn->lcnphy_rawtempsense;