there are little white "tabs" under the seats that you can push in with a screwdriver. there is one on each side of the bottom seat. it might take a while, but thats who i removed mine.
what 94whtGT said... Push down on the seat right above the clips, push straight in on the clips with a screwdriver, then lift up on the seat and it'll come right out
There are 2 tabs app 10" from the ends of the seat on each side you have to push before pulling up on the seat bottom. The 1st time is hard & time consuming, but after you do it and see what you are doing & where the tabs are it will take less than 2 minutes.