Remove -O3, which appears to cause issues on 64-bit compiles (Zaba).

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1951 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on July 31, 2007
6JG5G2K7WW4OTAD2NM2QUQZ3R4RDOC2VZIP4CIJF5EE3SLE7DCYAC
Change contents