Clean node resolver map entries on attested node deletion

[guilhermocc]

Pull Request check list

• Commit conforms to CONTRIBUTING.md?
• Proper tests/regressions included?
• Documentation updated?

Affected functionality

• Agent eviction action

Description of change
Update DeleteAttestedNode method to also delete node selectors

Which issue this PR fixes
fixes #3872

[azdagron]

Thanks, @guilhermocc! I wonder if we should open a separate issue to provide some database cleanup code that deletes selector rows that have a spiffe ID not represented in the attested nodes table, maybe when the database is first opened, that we could keep in for a minor release cycle to make sure stale entries are removed eventually.

[guilhermocc]

Thanks, @guilhermocc! I wonder if we should open a separate issue to provide some database cleanup code that deletes selector rows that have a spiffe ID not represented in the attested nodes table, maybe when the database is first opened, that we could keep in for a minor release cycle to make sure stale entries are removed eventually.

It makes sense since this PR will only prevent the existence of new stale node resolver map entries, but will not clean existing ones. I can create it :)

[guilhermocc]

@azdagron update about the created issue: #3919