Clean up Zin's mutation-removal retribution a bit more.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@9450 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on March 13, 2009
XF322K6EBJEILJLKGN4BTPGR3XTQEIUM76TCNF3G6WTA7K6AB5IQC
Change contents