marvin_refactor: remove the entity from passing to the apiserver

entity attributes derived for each API should not be sent to the API
server as it messes with the signature generation.

Signed-off-by: Prasanna Santhanam <tsp@apache.org>

tools/marvin/marvin/cloudstackConnection.py

@@ -236,6 +236,8 @@ class CloudConnection(object):
                     isAsync = getattr(cmd, attribute)
                 elif attribute == "required":
                     required = getattr(cmd, attribute)
+                elif attribute == "entity":
+                    continue
                 else:
                     requests[attribute] = getattr(cmd, attribute)