luacrypto: remove duplicate dependency on luainterpreter

The luarocks package infrastructure already adds a dependency on
luainterpreter, so it is not necessary to add it in luacrypto.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Acked-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>