comedi: quit wanking with FASYNC in ->release()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

drivers/staging/comedi/comedi_fops.c

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 924c54c..a9754e8 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -2317,9 +2317,6 @@
 
 	mutex_unlock(&dev->mutex);
 
-	if (file->f_flags & FASYNC)
-		comedi_fasync(-1, file, 0);
-
 	return 0;
 }