Release: remove scripts and dev deps from dist package.json

[timmywil]

• this became necessary due to the addition of the prepare script
• scripts aren't needed and don't work in the dist repo

Summary

3.x version of #5404

Checklist

• [x] New tests have been added to show the fix or feature works
• [x] If needed, a docs issue/PR was created at https://github.com/jquery/api.jquery.com