removed margo_provider_register_data and margo_provider_registered_data functions

include/margo.h

@@ -259,41 +259,6 @@ void* margo_registered_data(
     margo_instance_id mid,
     hg_id_t id);
 
-/**
- * Register and associate user data to registered function for
- * a given provider id.
- * When HG_Finalize() is called free_callback (if defined) is called 
- * to free the registered data.
- *
- * \param [in] mid            Margo instance
- * \param [in] id             registered function ID
- * \param [in] provider_id    Margo provider ID
- * \param [in] data           pointer to data
- * \param [in] free_callback  pointer to free function
- *
- * \return HG_SUCCESS or corresponding HG error code
- */
-int margo_provider_register_data(
-    margo_instance_id mid,
-    hg_id_t id,
-    uint16_t provider_id,
-    void* data,
-    void (*free_callback)(void *));
-
-/**
- * Indicate whether margo_provider_register_data() has been called 
- * and return associated data.
- *
- * \param [in] mid        Margo instance 
- * \param [in] id         registered function ID
- * \param [in] provider_id Margo provider ID
- *
- * \return Pointer to data or NULL
- */
-void* margo_provider_registered_data(
-    margo_instance_id mid,
-    hg_id_t id,
-    uint16_t provider_id);
 
 /**
  * Disable response for a given RPC ID.