There were four issues in OpenAPI aggregation cleanup:
1. When removing an APIService, openAPIAggregationController was called
twice while openAPIV3AggregationController was never called, leading
to OpenAPI v3 for the APIService not cleaned up.
2. When removing a local APIService, v2 specAggregator should not return
ErrAPIServiceNotFound when it doesn't find the APIService because
local APIServices were never added to its cache, otherwise confusing
error logs would be generated. Besides, the method's comment
indicates that the desired behavior is that no error is returned if
the APIService does not exist.
3. When removing an APIService, v3 specProxier should update
openapiv2converter's cache, like when updating an APIService,
otherwise the API would not be removed from "/openapi/v3".
4. When v3 AggregationController reconciles an APIService, it should
stop requeueing it if it fails with ErrAPIServiceNotFound as the
APIService has been removed, like what v2 AggregationController does,
otherwise it would keep reconciling the APIService forever.
Signed-off-by: Quan Tian <qtian@vmware.com>
bf41b0462c