Remove ERROR log on non-CloseableServant (Fix #11378)

Since the refactoring the close methods out of
`AbstractAmdServant` and into `CloseableServant`,
an ERROR has been printed for each stateless
service.
Merge pull request #1403 from joshmoore/rebased/dev_4_4/11378-closeable-servant

Remove ERROR log on non-CloseableServant (Fix #11378) (rebased onto dev_4_4)