shadow-utils: remove dependency causing conflict

The "+ALL:shadow" dependency causes conflict with passwd utility
as it is provided by busybox in the default configuration.

Signed-off-by: Gergely Kiss <mail.gery@gmail.com>

utils/shadow/Makefile

@@ -64,7 +64,6 @@ endef
 
 define Package/shadow-utils
   $(call Package/shadow/Default)
-  DEPENDS:=+ALL:shadow
 endef
 
 define Package/shadow-utils/config