staging: line6: delete an unused function

line6_send_sysex_message_async() isn't called from anywhere.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@gmail.com>
Reviewed-by: Johannes Thumshirn <morbidrsa@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/line6/driver.c

@@ -331,17 +331,6 @@ int line6_send_sysex_message(struct usb_line6 *line6, const char *buffer,
 	    SYSEX_EXTRA_SIZE;
 }
 
-/*
-	Send sysex message in pieces of wMaxPacketSize bytes.
-*/
-int line6_send_sysex_message_async(struct usb_line6 *line6, const char *buffer,
-				   int size)
-{
-	return line6_send_raw_message_async(line6, buffer,
-					    size + SYSEX_EXTRA_SIZE) -
-	    SYSEX_EXTRA_SIZE;
-}
-
 /*
 	Allocate buffer for sysex message and prepare header.
 	@param code sysex message code

drivers/staging/line6/driver.h

@@ -208,8 +208,6 @@ extern int line6_send_raw_message_async(struct usb_line6 *line6,
 					const char *buffer, int size);
 extern int line6_send_sysex_message(struct usb_line6 *line6,
 				    const char *buffer, int size);
-extern int line6_send_sysex_message_async(struct usb_line6 *line6,
-					  const char *buffer, int size);
 extern ssize_t line6_set_raw(struct device *dev, struct device_attribute *attr,
 			     const char *buf, size_t count);
 extern void line6_start_timer(struct timer_list *timer, unsigned int msecs,