You will now be able to remove the plastic trim behind the end of the seat rail.

Behind the end of the seat rail you will find a large concave washer and a smaller rubber sealing washer (the hole that the bolt goes through is exposed to the outside). Make sure to note their orientation for replacement.

The seat rail will now be free and the seat can be removed. Lift it up and out through the front door, being careful not to scratch anything with the metal seat rails.

The front seats are fairly heavy. Have a helper lift it out if in doubt.