CLOUDSTACK-9591: Fix systemvmtemplate to not include network details

This removes nic/network specific details while exporting the systemvmtemplate
for vmware (ova file). Having this causes the ssvms to not deploy in
dvswitch-based vmware environments that have no vswitch portgroups (dummy etc).
Tested this on a local Trillian env.

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

Author: yadvr

tools/appliance/build.sh

@@ -433,12 +433,6 @@ scsi0:0.writeThrough = "false"
 scsi0.virtualDev = "lsilogic"
 scsi0.present = "TRUE"
 vmci0.unrestricted = "false"
-ethernet0.present = "TRUE"
-ethernet0.virtualDev = "e1000"
-ethernet0.connectionType = "bridged"
-ethernet0.startConnected = "TRUE"
-ethernet0.addressType = "generated"
-ethernet0.wakeonpcktrcv = "false"
 vcpu.hotadd = "false"
 vcpu.hotremove = "false"
 firmware = "bios"