Revert "ugly hack to get tk built, but seems File::FNM_CASEFOLD is broken"

This reverts commit 378213fcdb48c8e9e7fd798974ccaa7989471f6b.

the problem was due nonsense in carme filesystem:
105848590 lrwxrwxrwx 1 root root   12 May 16  2013 /usr/lib64/ñÿ -> libgcj_bc.so*