- Remove closure-util.json, we're now using the same library version as closure-util
- Disable analyzerChecks errors from closure-compiler
- Remove WheelEvent constants from externs (fixed upstream)
- Activate the unnecessaryCasts compiler check
This works at resolutions where simplification is significantly reducing the number of points in the line. At high resolutions, navigation becomes unresponsive. Limiting draw instructions to a replay group's extent will fix this.