package/cryptsetup: really break circular dependency

The commit [1] should fix a circular dependency by
using util-linux-libs instead of util-linux if
BR2_PACKAGE_UTIL_LINUX_LIBS is set.

But util-linux is still in CRYPTSETUP_DEPENDENCIES.
Remove it to really break the circular dependency.

[1] e3c86f5c

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Reviewed-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>