Dude... I would have bought that from you. Shame
IHS removal is a potentially dangerous process. Besides, the sempron isn't 939. They're only socket A or socket 754 for 64-bit.
You have tried it to make sure it doesn't work? My laptop CPU has one of those little chips damaged and it work just fine
Give it a try still, I saw a thread where a guy managed to chop off 5 of those on an opteron and it still ran!
The "chips" are decoupling capacitors. They have two purpouses: to smooth the supply voltage to the CPU and reduce noise from the CPU to the mobo. They should not be critical.