DRIVERS-2732 Remove extra listCollections from KMIP delegated tests

[adriandole]

Please complete the following before merging:

• [x] Update changelog.
• [x] Make sure there are generated JSON files from the YAML test files.
• [x] Test changes in at least one language driver
• [x] Test these changes against all server versions and topologies (including standalone, replica set, sharded clusters, and serverless).

An extra listCollections event was included by mistake in the JSON test from KMIP delegated. The test passes with the C driver despite the inclusion because of a quirk in the C driver's test runner. Thanks @katcharov for spotting it.