They're the biggest tants on the board! Anything can be removed. All you need is a soldering iron.Zut alors! C11 and C12 are three-legged and may be hard to find. Are you sure they can be removed?
The FDs are on rails. It looks as though there ought to be a tab on the front of the rail to secure the rail (and thus the drive) to the chassis. Have I got the wrong rails?
Yes, there are tabs for securing those rails.