Hi, as the title says I trying to figure out how to remove my patio sliding door door. I've looked at the sliding door and it has a cover/tab that I believe needs to be popped off at the top and bottom of the door. I've attached a picture below to show what I'm talking about. I've tried prying it off with a screwdriver, but it's on pretty tight so I'm not sure it's truly removable. Any help would be appreciated.