Removes deprecation warning

[ryanmoran]

Summary

Removes the deprecation warning so that it can continue to be used outside the Paketo project without a scary log line.

Use Cases

Other projects may use and deprecate this buildpack on their own timeline and so this log line doesn't apply to them.

Checklist

• I have viewed, signed, and submitted the Contributor License Agreement.
• I have linked issue(s) that this PR should close using keywords or the Github UI (See docs)
• I have added an integration test, if necessary.
• I have reviewed the styleguide for guidance on my code quality.
• I'm happy with the commit history on this PR (I have rebased/squashed as needed).