scripts to build glibc with asan

git-svn-id: http://address-sanitizer.googlecode.com/svn/trunk@2198 3c3640eb-14a6-2bb8-0b94-e9e73afe33f5
add one more item to the blacklist, remove dead code

git-svn-id: http://address-sanitizer.googlecode.com/svn/trunk@2199 3c3640eb-14a6-2bb8-0b94-e9e73afe33f5