r8169: remove PHY resume delay that is handled in the PHY driver now

The Realtek PHY driver takes care of adding the needed delay now,
therefore we can remove the delay here.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/realtek/r8169_main.c

@@ -2391,8 +2391,6 @@ static void rtl_pll_power_up(struct rtl8169_private *tp)
 	}
 
 	phy_resume(tp->phydev);
-	/* give MAC/PHY some time to resume */
-	msleep(20);
 }
 
 static void rtl_init_rxcfg(struct rtl8169_private *tp)