[PATCH net-next] net: mscc: ocelot: remove set but not used variable 'phy_mode'

[YueHaibing]

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

drivers/net/ethernet/mscc/ocelot_board.c: In function 'mscc_ocelot_probe':
drivers/net/ethernet/mscc/ocelot_board.c:262:17: warning:
 variable 'phy_mode' set but not used [-Wunused-but-set-variable]
   enum phy_mode phy_mode;

It never used since introduction in 
commit 71e32a20cfbf ("net: mscc: ocelot: make use of SerDes PHYs for handling 
their configuration")

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/net/ethernet/mscc/ocelot_board.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/mscc/ocelot_board.c 
b/drivers/net/ethernet/mscc/ocelot_board.c
index 953b326..0cf0b09 100644
--- a/drivers/net/ethernet/mscc/ocelot_board.c
+++ b/drivers/net/ethernet/mscc/ocelot_board.c
@@ -259,7 +259,6 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
                struct phy_device *phy;
                struct resource *res;
                struct phy *serdes;
-               enum phy_mode phy_mode;
                void __iomem *regs;
                char res_name[8];
                u32 port;
@@ -297,10 +296,8 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
                case PHY_INTERFACE_MODE_NA:
                        continue;
                case PHY_INTERFACE_MODE_SGMII:
-                       phy_mode = PHY_MODE_SGMII;
                        break;
                case PHY_INTERFACE_MODE_QSGMII:
-                       phy_mode = PHY_MODE_QSGMII;
                        break;
                default:
                        dev_err(ocelot->dev,