I had an extra set to look at to figure out that clip.
Take a screwdriver or a butter knife (something long, strong and thin) and slide it down from the top until it hits a little tab... You need to press that down while you are pulling the bolster out. It'll take a few times, but by pushing down on the tab, you're unlatching it, and the pulling out is needed to make sure you get it out before your knife/screwdriver slips and it snaps back.
It'll take some work, but it'll work.
Take a screwdriver or a butter knife (something long, strong and thin) and slide it down from the top until it hits a little tab... You need to press that down while you are pulling the bolster out. It'll take a few times, but by pushing down on the tab, you're unlatching it, and the pulling out is needed to make sure you get it out before your knife/screwdriver slips and it snaps back.
It'll take some work, but it'll work.