[ide] make try_to_flush_leftover_data() static

Hi,

now that you cleaned up the ide-io.c code to be all in the right file,
try_to_flush_leftover_data can become static since all users are in this
file now.

bart: also remove declaration from <linux/ide.h>
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide-io.c

@@ -437,7 +437,7 @@ EXPORT_SYMBOL(ide_end_drive_cmd);
  *	by read a sector's worth of data from the drive.  Of course,
  *	this may not help if the drive is *waiting* for data from *us*.
  */
-void try_to_flush_leftover_data (ide_drive_t *drive)
+static void try_to_flush_leftover_data (ide_drive_t *drive)
 {
 	int i = (drive->mult_count ? drive->mult_count : 1) * SECTOR_WORDS;
 
@@ -452,8 +452,6 @@ void try_to_flush_leftover_data (ide_drive_t *drive)
 	}
 }
 
-EXPORT_SYMBOL(try_to_flush_leftover_data);
-
 static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
 {
 	ide_hwif_t *hwif = drive->hwif;

include/linux/ide.h

@@ -1250,8 +1250,6 @@ extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t);
  */
 extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
 
-extern void try_to_flush_leftover_data(ide_drive_t *);
-
 /*
  * Issue ATA command and wait for completion.
  * Use for implementing commands in kernel