Delete Every Block of One Type

Hi, I'm looking for a way to delete every block of the same type from a course (e.g. all "note" blocks).

My team uses specific types of blocks for instructor-specific content in the instructor version of our courses, and then duplicate it out for the student version of the course (where we currently manually delete those specific instructor-only notes). If there was a way to remove those inline instructor notes without manually having to delete every block of that type in the duplicated version, that would speed up our development process a lot!

Are there any current methods out there that would allow us to achieve this?

Ideally, we're looking for a feature where we could mark specific blocks, content, and lessons as instructor content and then create a publish feature that hides that content in the export process to create the student versions of these courses in the final xAPI file.