staging: vc04_services: Drop pointless stub functions

These functions do nothing besides returning NULL and are unused.
Just drop them.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vc04_services/interface/vchi/vchi.h

@@ -116,9 +116,6 @@ typedef struct service_info_tag {
 extern "C" {
 #endif
 
-extern /*@observer@*/ VCHI_CONNECTION_T *vchi_create_connection(const VCHI_CONNECTION_API_T *function_table,
-								 const VCHI_MESSAGE_DRIVER_T *low_level);
-
 // Routine used to initialise the vchi on both local + remote connections
 extern int32_t vchi_initialise(VCHI_INSTANCE_T *instance_handle);
 
@@ -292,14 +289,6 @@ extern int32_t vchi_bulk_queue_transmit(VCHI_SERVICE_HANDLE_T handle,
  Configuration plumbing
  *****************************************************************************/
 
-// function prototypes for the different mid layers (the state info gives the different physical connections)
-extern const VCHI_CONNECTION_API_T *single_get_func_table(void);
-//extern const VCHI_CONNECTION_API_T *local_server_get_func_table(void);
-//extern const VCHI_CONNECTION_API_T *local_client_get_func_table(void);
-
-// declare all message drivers here
-const VCHI_MESSAGE_DRIVER_T *vchi_mphi_message_driver_func_table(void);
-
 #ifdef __cplusplus
 }
 #endif

drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c

@@ -50,33 +50,6 @@ struct shim_service {
 	void *callback_param;
 };
 
-/* ----------------------------------------------------------------------
- * return pointer to the mphi message driver function table
- * -------------------------------------------------------------------- */
-const VCHI_MESSAGE_DRIVER_T *
-vchi_mphi_message_driver_func_table(void)
-{
-	return NULL;
-}
-
-/* ----------------------------------------------------------------------
- * return a pointer to the 'single' connection driver fops
- * -------------------------------------------------------------------- */
-const VCHI_CONNECTION_API_T *
-single_get_func_table(void)
-{
-	return NULL;
-}
-
-VCHI_CONNECTION_T *vchi_create_connection(
-	const VCHI_CONNECTION_API_T *function_table,
-	const VCHI_MESSAGE_DRIVER_T *low_level)
-{
-	(void)function_table;
-	(void)low_level;
-	return NULL;
-}
-
 /***********************************************************
  * Name: vchi_msg_peek
  *