Remove GET ops from update_router()

Each service client method should be a single REST operation, but
update_router() fetches original router information before PUT
operation. This kind of thing should be executed on test side.
This patch removes the GET operation from the method.

Partially implements blueprint consistent-service-method-names

Change-Id: Ie6ebb5f8e336e702b746ba9361fe452b390ffd8c
4 files changed