Specify "board_technology" for the OLTs in deployment config file.
Also remove unused yaml deployment configuration files.

Change-Id: I5d033e60483f1e723a352051545925e32735c3f2
diff --git a/deployment-configs/onf-demo-pod.yaml b/deployment-configs/onf-demo-pod.yaml
index 5153b95..ca269e1 100644
--- a/deployment-configs/onf-demo-pod.yaml
+++ b/deployment-configs/onf-demo-pod.yaml
@@ -53,6 +53,7 @@
     serial: 'EC1904000654'
     oltDebVersion: openolt_asfvolt16-3.4.8-eec0fc9e9a01dc0d35b0b8441e0a22a4c0cc51b4-40G-NNI.deb
     oltDebVersion23: openolt_asfvolt16-3.3.3-1a5d68b50d8bcc5ba6cb1630d3294c30c37cd2f5-40G-NNI.deb
+    board_technology: XGS-PON
 
 onus:
   -