[PATCH 5/5] Revert "sysbus: add irq_routing_notifier"

The callback has been introduced in commit 715ca691daca ("sysbus: add
irq_routing_notifier") for use in VFIO platform. Meanwhile, VFIO
platform has been removed via commit 762c85543948 ("vfio: Remove 'vfio-
platform'") which was its only user. Remove this unused code.

This reverts commit 715ca691daca081108b33306faa6fa102f0df8d8.

cc: Cédric Le Goater <[email protected]>
Signed-off-by: Bernhard Beschow <[email protected]>
---
 include/hw/core/sysbus.h | 1 -
 hw/core/sysbus.c         | 6 ------
 2 files changed, 7 deletions(-)

diff --git a/include/hw/core/sysbus.h b/include/hw/core/sysbus.h
index c0d18d9e00..f3c4259d29 100644
--- a/include/hw/core/sysbus.h
+++ b/include/hw/core/sysbus.h
@@ -50,7 +50,6 @@ struct SysBusDeviceClass {
      * omitted then. (This is not considered a fatal error.)
      */
     char *(*explicit_ofw_unit_address)(const SysBusDevice *dev);
-    void (*connect_irq_notifier)(SysBusDevice *dev, qemu_irq irq);
 };
 
 struct SysBusDevice {
diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c
index 3adf2f2faf..3e1160ee92 100644
--- a/hw/core/sysbus.c
+++ b/hw/core/sysbus.c
@@ -104,13 +104,7 @@ qemu_irq sysbus_get_connected_irq(const SysBusDevice *dev, int n)
 
 void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq)
 {
-    SysBusDeviceClass *sbd = SYS_BUS_DEVICE_GET_CLASS(dev);
-
     qdev_connect_gpio_out_named(DEVICE(dev), SYSBUS_DEVICE_GPIO_IRQ, n, irq);
-
-    if (sbd->connect_irq_notifier) {
-        sbd->connect_irq_notifier(dev, irq);
-    }
 }
 
 /* Check whether an MMIO region exists */
-- 
2.53.0