Updating example dhcp.json for new config

Change-Id: Ib40eade51a3fd1c5ffd5ab43bbcf4ee3d0c53605
diff --git a/tools/test/configs/office-dhcp.json b/tools/test/configs/office-dhcp.json
index 994f5b9..f0cf3fb 100644
--- a/tools/test/configs/office-dhcp.json
+++ b/tools/test/configs/office-dhcp.json
@@ -11,10 +11,8 @@
         "ttl": "63",
         "lease": "300",
         "renew": "150",
-        "rebind": "200"
-      },
-      "dhcpstore" : {
-        "delay": "3",
+        "rebind": "200",
+        "delay": "2",
         "timeout": "150",
         "startip": "10.1.11.51",
         "endip": "10.1.11.100"