Add a drop relation to test to include other_schema

[McKnight-42]

resolves # docs dbt-labs/docs.getdbt.com/#

Problem

after clearing databases of all standing built up test artifacts checking to see what tests might have constant offenders this one shows up a few times and may need to be backported or potentially move the teardown/clean_up method to base class?

Solution

Checklist

• [ ] I have read the contributing guide and understand what's expected of me
• [ ] I have run this code in development and it appears to resolve the stated issue
• [ ] This PR includes tests, or tests are not required/relevant for this PR
• [ ] This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX

[McKnight-42]

Closing for now as recent queries on databricks not showing standing tests so this may be unnecssary