Fix the issue where the flavor name was empty in server list output.
This requires somewhat invasive unit test changes to reflect the changed
API response from the server, but this has the upside of meaning we
don't need new tests since what we have validates things.
Also drop the flavor ID column as it is removed from the compute API.
Change-Id: Ica3320242a38901c1180b2b29109c9474366fde0
Signed-off-by: Khomesh Thakre <khomeshthakre24@gmail.com>
Story: 2008257
Task: 41113
8e362402de