imx: mx6qsabreauto: drop duplicated net phy configuration

In 'commit d584c68ce0f5bf2f430ccfb2ba00bd506206fb91',
ar8031 is changed to use ar8035_config. ar8035_config
actually does the same thing as mx6_rgmii_rework, so
drop mx6_rgmii_rework and board_phy_config.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Stefano Babic <sbabic@denx.de>

board/freescale/mx6qsabreauto/mx6qsabreauto.c

@@ -321,39 +321,6 @@ static void setup_gpmi_nand(void)
 }
 #endif
 
-int mx6_rgmii_rework(struct phy_device *phydev)
-{
-	unsigned short val;
-
-	/* To enable AR8031 ouput a 125MHz clk from CLK_25M */
-	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
-	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
-	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
-
-	val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
-	val &= 0xffe3;
-	val |= 0x18;
-	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
-
-	/* introduce tx clock delay */
-	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
-	val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
-	val |= 0x0100;
-	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
-
-	return 0;
-}
-
-int board_phy_config(struct phy_device *phydev)
-{
-	mx6_rgmii_rework(phydev);
-
-	if (phydev->drv->config)
-		phydev->drv->config(phydev);
-
-	return 0;
-}
-
 static void setup_fec(void)
 {
 	if (is_mx6dqp()) {