Google Drive Docs, Sheets, and Slides apps now let you delete files right from the editor
A nice little enhancement for Google Drive users started rolling out last night with the ability to delete files directly from within any given app’s editor. For instance, if you’re editing a Google Doc, Sheet, or Slide, you will no longer have to return to your main list of files in Drive to delete it.
The new option is located under File > Move to Trash as pictured below: