The Track Remover module lets you remove the tracks laid by a cart after, for example, mining a tunnel. You need to have a storage module on the cart for this to work, because it doesn't have any internal storage. This module does not work with any of the railers.
The cart will go the end of the track line, turn around, and start removing the tracks after it. The tracks it removes will get stored in the storage module in the cart.
NOTE : This module does not work with any railer module.