As far as I know, removal of the clitoris is not a part of Islam. It is a cultural custom that is very bad indeed. Would you cut off your arm if other people were doing it? Please think again - the consequences can only be negative.

Why in God's name would you want to do something like this to yourself???

You could find some information about this in the following article. Please consider that it is a kind of self mutilation which will only have negative consequences for you. I strongly advice to inform yourself about the consequences before doing something that you could regret in the future.

"Opposition is motivated by concerns regarding the consent (or lack thereof, in most cases) of the patient, and subsequently the safety and long-term consequences of the procedures. In the past several decades, there have been many concentrated efforts by the World Health Organization (WHO) to end the practice of FGC. The United Nations has also declared February 6 as "International Day Against Female Genital Mutilation"."
Source and further information:
http://en.wikipedia.org/wiki/Female_genital_cutting