The --tenant option in the flavor-access-list command was
never implemented and filtering by tenant is not supported
in the REST API for os-flavor-access, so to avoid confusion
this change deprecates the command line option.
It also removes the cruft that was in the python API code
so that only 'flavor' is allowed. This it not a backward
incompatible change since list() still takes kwargs and still
raises a NotImplementedError for anything in kwargs but
'flavor'.
Change-Id: I2c36376674f3a7caf5967a16ac0152f17d9fc906
Closes-Bug: #1582284
1fd68964ea