Abrogation of the Koran (and hadith) is prohibited. It is punishable by death in Islamowacko countries.
It does make one wonder however, why the university of Michigan is trying to sanitize the koran. Have the Muslims taken over the state completely now? I wonder if before long we see Michigan (the largest concentration of Muslims in North America) becoming the first Islamic state in North America. It is a strategic area considering that across the border lies Canada's largest muslim population, making it a security risk for terrorists crossing back and forth across the border.