tee: remove unused tee_shm_priv_alloc function definition

Signed-off-by: Olivier Masse <[email protected]>

include/linux/tee_drv.h

@@ -350,18 +350,6 @@ struct tee_shm *tee_shm_alloc_kernel_buf(struct tee_context *ctx, size_t size);
  */
 struct tee_shm *tee_shm_register_fd(struct tee_context *ctx, int fd);
 
-/**
- * tee_shm_priv_alloc() - Allocate shared memory privately
- * @teedev:	Device that allocates the shared memory
- * @size:	Requested size of shared memory
- *
- * Allocates shared memory buffer that is not associated with any client
- * context. Such buffers are owned by TEE driver and used for internal calls.
- *
- * @returns a pointer to 'struct tee_shm' on success, and ERR_PTR on failure
- */
-struct tee_shm *tee_shm_priv_alloc(struct tee_device *teedev, size_t size);
-
 /**
  * tee_shm_register() - Register shared memory buffer
  * @ctx:	Context that registers the shared memory