net: phy: marvell: remove set but not used variable 'pause'

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

drivers/net/phy/marvell.c: In function 'm88e1510_config_init':
drivers/net/phy/marvell.c:850:7: warning:
 variable 'pause' set but not used [-Wunused-but-set-variable]

It not used any more after commit 3c1bcc86 ("net: ethernet: Convert phydev
advertize and supported from u32 to link mode")
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/phy/marvell.c

@@ -847,7 +847,6 @@ static int m88e1510_config_init(struct phy_device *phydev)
 
 	/* SGMII-to-Copper mode initialization */
 	if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
-		u32 pause;
 
 		/* Select page 18 */
 		err = marvell_set_page(phydev, 18);
@@ -878,7 +877,6 @@ static int m88e1510_config_init(struct phy_device *phydev)
 		 * This means we can never be truely sure what was advertised,
 		 * so disable Pause support.
 		 */
-		pause = SUPPORTED_Pause | SUPPORTED_Asym_Pause;
 		linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
 				   phydev->supported);
 		linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT,