r8169: remove access to legacy register MultiIntr

This code piece was inherited from RTL8139 code, the register at
address 0x5c however has a different meaning on RTL8169 and is unused.
So we can remove this.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/realtek/r8169_main.c

@@ -271,7 +271,6 @@ enum rtl_registers {
 	Config3		= 0x54,
 	Config4		= 0x55,
 	Config5		= 0x56,
-	MultiIntr	= 0x5c,
 	PHYAR		= 0x60,
 	PHYstatus	= 0x6c,
 	RxMaxSize	= 0xda,
@@ -5241,10 +5240,7 @@ static void rtl_hw_start(struct  rtl8169_private *tp)
 	RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb);
 	rtl_init_rxcfg(tp);
 	rtl_set_tx_config_registers(tp);
-
 	rtl_set_rx_mode(tp->dev);
-	/* no early-rx interrupts */
-	RTL_W16(tp, MultiIntr, RTL_R16(tp, MultiIntr) & 0xf000);
 	rtl_irq_enable(tp);
 }