[ONOS-7883] extend execute-tapi-post-call.py, verify its get-sip-list and create-sip function

Change-Id: I4ba37f1b80c737c4c0983e5aabfac0aafdd27440
diff --git a/tools/test/scenarios/bin/tapiHelper.py b/tools/test/scenarios/bin/tapiHelper.py
index 74714d0..77c3cd4 100755
--- a/tools/test/scenarios/bin/tapiHelper.py
+++ b/tools/test/scenarios/bin/tapiHelper.py
@@ -96,12 +96,8 @@
 # Obtains existing connectivity services
 #
 def get_connection(url_connectivity, uuid):
-    if(uuid == ""):
-        json = '{}'
-    else:
-        #TODO use uuid to retrieve given topo
-        print "Not Yet implemented"
-        json = '{}'
+    # uuid is useless for this method
+    json = '{}'
     headers = {'Content-type': 'application/json'}
     resp = requests.post(url_connectivity, data=json, headers=headers,  auth=('onos', 'rocks'))
     if resp.status_code != 200: