media: siano: Remove unused declarations

There is no caller and implementation in tree, so can remove them.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Author: Yue Haibing

drivers/media/common/siano/smscoreapi.h

@@ -1115,12 +1115,6 @@ extern int smsclient_sendrequest(struct smscore_client_t *client,
 extern void smscore_onresponse(struct smscore_device_t *coredev,
 			       struct smscore_buffer_t *cb);
 
-extern int smscore_get_common_buffer_size(struct smscore_device_t *coredev);
-extern int smscore_map_common_buffer(struct smscore_device_t *coredev,
-				      struct vm_area_struct *vma);
-extern int smscore_send_fw_file(struct smscore_device_t *coredev,
-				u8 *ufwbuf, int size);
-
 extern
 struct smscore_buffer_t *smscore_getbuffer(struct smscore_device_t *coredev);
 extern void smscore_putbuffer(struct smscore_device_t *coredev,