r8169: remove comment about apparently non-existing chip versions

It's not clear where these entries came from, and as I wrote in the
comment: Not even Realtek's r8101 driver knows these chip id's.
So remove the comment.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/realtek/r8169_main.c

@@ -2047,12 +2047,6 @@ static enum mac_version rtl8169_get_mac_version(u16 xid, bool gmii)
 		{ 0x7c8, 0x348,	RTL_GIGA_MAC_VER_09 },
 		{ 0x7c8, 0x248,	RTL_GIGA_MAC_VER_09 },
 		{ 0x7c8, 0x340,	RTL_GIGA_MAC_VER_16 },
-		/* FIXME: where did these entries come from ? -- FR
-		 * Not even r8101 vendor driver knows these id's,
-		 * so let's disable detection for now. -- HK
-		 * { 0xfc8, 0x388,	RTL_GIGA_MAC_VER_13 },
-		 * { 0xfc8, 0x308,	RTL_GIGA_MAC_VER_13 },
-		 */
 
 		/* 8110 family. */
 		{ 0xfc8, 0x980,	RTL_GIGA_MAC_VER_06 },