Apply an even amount of force using both flat head screwdrivers toward the closed end of the pin until it snaps out of the window crank handle.
How to take a door panel off with manual windows.
A door panel is used to cover the inside part of the door and hide the inner working of the door accessory s such as the window and door latch mechanisms.
This padded cardboard item is held on by a series of screws and plastic clips that must be removed to service such items as a window switch door lock and window motor and regulator.
There is door handle removal tool that is needed any auto parts store should have one and they are cheap you just push it in between the handle and the panel from the long side of the handle and it will come right off.
If you need to remove your door panels to paint them install electric power windows or put new speakers in.