Removing a Shared File from Google Drive Shared Folder

You know...when you upload a really bad image and want to delete it!

1. Go to drive.google.com or a Docs, Sheets, or Slides home screen.
2. Select a file or folder.
3. In Drive: At the top, click Share . ...
4. At the bottom right of the "Share with others" window, click Advanced.
5. Next to the person you want to stop sharing with, click Remove .
6. Click Save changes.

Source: Here!