Drop Xen checks

src/centos.ipxe

@@ -9,7 +9,6 @@ goto ${menu} ||
 clear osversion
 set os CentOS
 set ksdevice eth0
-iseq ${manufacturer} Xen && set netcfg ip=${netX/ip} netmask=${netX/netmask} gateway=${netX/gateway} dns=${dns} ||
 menu ${os} ${arch}
 item 7.1.1503 ${os} 7.1
 item 7.0.1406 ${os} 7.0

src/debian.ipxe

@@ -7,7 +7,6 @@ goto ${menu}
 
 :debian
 set os debian
-iseq ${manufacturer} Xen && set netcfg netcfg/get_ipaddress=${netX/ip} netcfg/get_netmask=${netX/netmask} netcfg/get_gateway=${netX/gateway} netcfg/get_nameservers=${dns} netcfg/confirm_static=true netcfg/choose_interface=eth0 netcfg/disable_autoconfig=true ||
 
 menu Debian ${arch_a}
 item jessie Debian 8.0 (jessie)

src/fedora.ipxe

@@ -11,7 +11,6 @@ clear sku_type
 clear ova
 set os Fedora
 menu Fedora ${arch}
-iseq ${manufacturer} Xen && set netcfg ip=${netX/ip} netmask=${netX/netmask} gateway=${netX/gateway} dns=${dns} ksdevice=eth0 ||
 item 22 ${os} 22
 item 21 ${os} 21
 item 20 ${os} 20

src/opensuse.ipxe

@@ -4,7 +4,6 @@
 # http://opensuse.org
 
 menu openSUSE ${arch}
-iseq ${manufacturer} Xen && set netcfg hostip=${netX/ip} netmask=${netX/netmask} gateway=${netX/gateway} nameserver=${dns} ||
 item 13.2 openSUSE 13.2
 item 13.1 openSUSE 13.1
 item 12.3 openSUSE 12.3

src/scientific.ipxe

@@ -8,7 +8,6 @@ goto ${menu} ||
 :scientific
 clear osversion
 set os Scientific
-iseq ${manufacturer} Xen && set netcfg ip=${netX/ip} netmask=${netX/netmask} gateway=${netX/gateway} dns=${dns} ksdevice=eth0 ||
 menu ${os} ${arch}
 item 7.0 ${os} 7.0
 item 6.5 ${os} 6.5