drivers/ide/ide-dma.c: unexport ide_set_dma

ide_set_dma no longer has any modular user.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide-dma.c

@@ -861,8 +861,6 @@ int ide_set_dma(ide_drive_t *drive)
 	return rc;
 }
 
-EXPORT_SYMBOL_GPL(ide_set_dma);
-
 #ifdef CONFIG_BLK_DEV_IDEDMA_PCI
 void ide_dma_lost_irq (ide_drive_t *drive)
 {