Proposed Changes

1. Removes trailing spaces in build.py
2. Removes trailing spaces in descriptor files
3. Regenerates files with bash build.sh

Similar to #1987. I'm proposing this change because my editor is configured to auto-delete trailing whitespace in files on save. This was causing a lot of files I worked on in #1934 to show unrelated whitespace changes. I found the source of these trailing spaces, removed them, and regenerated the files. This fixes the problem at its source and should prevent others from running into this in the future.

Readiness Checklist

Author/Contributor

• Add entry to the CHANGELOG listing the change and linking to the corresponding issue (if appropriate)
• If documentation is needed for this change, has that been included in this pull request

Reviewing Maintainer

• Label as breaking if this is a large fundamental change
• Label as either automation, bug, documentation, enhancement, infrastructure, or performance