Remove ManeuverModifier and rely on the one exposed in MAS

[Guardiola31337]

Description

Removes ManeuverModifier and rely on the one exposed in MAS mapbox-sdk-directions-models after bumping mapbox-sdk-services and mapbox-sdk-directions-models dependency versions to 5.2.1

Follow up from https://github.com/mapbox/mapbox-navigation-android/pull/2839/files#diff-8c755921f2385f1530835cba285cbdceL276-L309 and mapbox/mapbox-java#1141

• I have added any issue links
• I have added all related labels (bug, feature, new API(s), SEMVER, etc.)
• I have added the appropriate milestone and project boards

Goal

General clean up

Implementation

Replace ManeuverModifier occurrences by MAS ones

Testing

• I have tested locally (including SNAPSHOT upstream dependencies if needed) through testapp/demo app and run all activities to avoid regressions
• I have tested via a test drive, or a simulation/mock location app
• New and existing unit tests pass locally with my changes

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have updated the CHANGELOG including this PR