Can I delete the "remove the drive" menu in menu-bar in Catalina?
Removing icons from the menu bar for several versions of macOS has the same process. Knowing that, I’ll guess you are referring to this eject icon:



This is the Disk Eject Icon. 

If you hold the ⌘ Command key down while clicking on the icon you should be able to drag it out of the menu bar and it will be gone.

If that ain't it add your image to the question and we'll go from there.