You can't take off the CPU cooler bracket.
You can't take off the CPU cooler bracket.
Examining the images, the left picture indicates that the device doesn't unscrew. To extract it, use needle-nose pliers and gently squeeze the two tips together, pulling until it comes out. Usually, a few attempts are needed to get it free—just keep squeezing until the gap closes. Alternatively, you can trim the end shown in the picture with a hot-tipped knife or similar tool, which might be simpler. Take care and good luck.