glibc-package.inc: correct intention for deleting /usr/lib as needed

glibc-package.inc: correct intention for deleting /usr/lib as needed

In case the baselib is lib64 we would want to delete /usr/lib
after removing the /usr/lib/locale dir and the implementation
wanted to do that earlier as well but the fault was checking
an already removed dir (/usr/lib/locale) before trying to
remove /usr/lib as that check would always fail.
Now we simply try to delete /usr/lib after deleting
/usr/lib/locale to make sure it deletes cleanly and is empty
at the time of deletion.

(From OE-Core rev: 4dad1568f8f84ec9de4bf7235822f77a8ee6a413)

Signed-off-by: Awais Belal <awais_belal@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>