compier, rtl: revert 24424 since it fails on some platforms

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24425 3ad0048d-3df7-0310-abae-a5850022a9f2
* do not depend on sysutils because unicodedata is a very basic unit

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24426 3ad0048d-3df7-0310-abae-a5850022a9f2