Removing the coin door has been done many times over the decades, it has failed every single time.
At the end of the day this is a classic remake of a classic game, the whole point of it is to try to recreate the original classic game, removing a huge visual element like a coin door would drastically change the look of the game, which is something you wouldn't want to do in a remake. People seem to accept little changes and modern day improvements, but you would cut out almost all the classic remake buyers if you deviate too much from the original.
People have already posted an alternative for you - buy a blank coin door and get it painted.
For a company that is only just starting out you want to keep things as simple as possible, you don't want to start adding heaps of customisation.