ide: remove hwif->intrproc

Given that:

* hpt366.c::hpt3xx_intrproc() is the only user of hwif->intrproc

* hpt366.c::hpt3xx_quirkproc() sets drive->quirk_list to 1 for quirky drives
  which is a value unique to hpt366 host driver

we can remove hwif->intproc and just check for drive->quirk_list == 1
in ide_do_request().

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 6b70ab9..6ee7458 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -1200,10 +1200,11 @@
 		if (hwgroup->hwif->sharing_irq &&
 		    hwif != hwgroup->hwif &&
 		    hwif->io_ports[IDE_CONTROL_OFFSET]) {
-			/* set nIEN for previous hwif */
-			if (hwif->intrproc)
-				hwif->intrproc(drive);
-			else
+			/*
+			 * set nIEN for previous hwif, drives in the
+			 * quirk_list may not like intr setups/cleanups
+			 */
+			if (drive->quirk_list != 1)
 				hwif->OUTB(drive->ctl | 2, IDE_CONTROL_REG);
 		}
 		hwgroup->hwif = hwif;