Redundant comparison
Description of problem:
The result of the function `qdev_get_hotplug_handler` is always __NULL__. That is why the comparison in the line №502 is redundant:

https://gitlab.com/qemu-project/qemu/-/blob/master/hw/core/qdev.c#L501

This code will never be executed:

https://gitlab.com/qemu-project/qemu/-/blob/master/hw/core/qdev.c#L502-L507

Found by Linux Verification Center (portal.linuxtesting.ru) with SVACE.

Author A. Voronin.