i might have a hacky solution to make it invisible...
if you create a style class and paste this
}.contextMenuCommon.ia_contextMenu{display:none;}{
into for example the background image.
The copy popup will no longer be visible and clickable. It still triggers the event tho.
Also this will now work on all tables you have in the project, so if do want it somewhere else you will have to change it a bit to be more specific.
You can "inject" css in the styles. You can probably also change the styles somewhere else in the base files but this is easier for a quick fix.
There probably is a better way but idk it