ARM: imx6q: remove part of ar8031_phy_fixup()

This part of this fixup is overwritten by at803x_config_init() in
drivers/net/phy/at803x.c. No additional devicetree fixes are needed.
Signed-off-by: NOleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/mach-imx/mach-imx6q.c

@@ -82,12 +82,6 @@ static int ar8031_phy_fixup(struct phy_device *dev)
 	val |= 0x18;
 	phy_write(dev, 0xe, val);
 
-	/* introduce tx clock delay */
-	phy_write(dev, 0x1d, 0x5);
-	val = phy_read(dev, 0x1e);
-	val |= 0x0100;
-	phy_write(dev, 0x1e, val);
-
 	return 0;
 }