habanero/slottable: Remove Network Mezz(2, 0) from PHB1.

With addition of latest callback of check_all_slot_table found below
error message in habanero platform.

[   17.069198739,3] PCI: built-in device not found: Network Mezz (loc: 10)
#54

So PHB1 already having one Network Mezz(1,0) which is the only one there in the
habanero platform design layout. check_all_slot_table found the additional
Network Mezz(2,0) in slot table is in-correct. Fix this by removing it.

Signed-off-by: Pridhiviraj Paidipeddi <ppaidipe@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

platforms/astbmc/habanero.c

@@ -38,11 +38,6 @@ static const struct slot_table_entry habanero_plx_slots[] = {
 		.location = ST_LOC_DEVFN(1,0),
 		.name = "Network Mezz",
 	},
-	{
-		.etype = st_pluggable_slot,
-		.location = ST_LOC_DEVFN(2,0),
-		.name = "Network Mezz",
-	},
 	{
 		.etype = st_builtin_dev,
 		.location = ST_LOC_DEVFN(8,0),