package/rhash: drop dangling RHASH_ADDLDFLAGS

Commit "ead2afda13 package/rhash: bump version to 1.4.0" dropped the
only usage of this define but the define itself was left dangling.

Drop it now.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/rhash/rhash.mk

@@ -12,7 +12,6 @@ RHASH_LICENSE_FILES = COPYING
 RHASH_CPE_ID_VENDOR = rhash_project
 RHASH_INSTALL_STAGING = YES
 RHASH_DEPENDENCIES = $(TARGET_NLS_DEPENDENCIES)
-RHASH_ADDLDFLAGS = $(TARGET_NLS_LIBS)
 
 ifeq ($(BR2_SYSTEM_ENABLE_NLS),y)
 RHASH_CONF_OPTS += --enable-gettext