Revert "ntdll: Avoid one of the calls to getattrlist() when read_directory_getattrlist() checks the case sensitivity of the file system.".

This was wrong-headed and could never have worked.  The second getattrlist()
call that I was trying to avoid was only necessary when the first fails.  Given
that the first failed, its results can't be used to avoid the second, no matter
what information we requested.

This reverts commit 5514df9d.

This was missed in commit 3494fb7f.

When you changed the font on the Desktop Integration tab, it wasn't
enabling the Apply button.

SHMapHandle fails with a variety of errors on these platforms.

This is a straightforward port of commit 8eb70459
which does the same thing for the matching method in navigate.c.