Overview

#4395 removed the it stage from the tile subproject so that integration testing (which doesn't depend on any other part of the project) could live on its own. It didn't remove references to it from build.sbt though, which we discovered only when trying to assemble the tile server jar in CI. This PR removes it references from the tile subproject dependency list so that assembly can run again and we can succeed in CI.

Checklist

• Description of PR is in an appropriate section of the changelog and grouped with similar changes if possible

Testing Instructions

• run tile/assembly
• it should succeed