Installing adjusting and removing a spring loaded hinge are important skills to know.
How to remove self closing door hinge pin.
But installation and removal can be tricky and the hinge must be at the right tension in order to be both useful and safe.
Then add or release tension until you get the proper close rate photo 2.
Start by removing the locking pin photo 1.
You can use a hammer to remove the hinge pins after removing the cover plate but you will also need to be careful to avoid damaging the trim.
Use small taps on with the hammer to remove the hinge pins.
A spring loaded hinge can be extremely useful for doors that need to remain closed.