ide: unexport ide_wait_not_busy()

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 44ad03b..1bcb948 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -1217,6 +1217,3 @@
 	}
 	return -EBUSY;
 }
-
-EXPORT_SYMBOL_GPL(ide_wait_not_busy);
-