The intermediate ISAIDEState::irq variable just add noise, remove it.
Message-Id: <20230215112712.23110-6-philmd@linaro.org> Reviewed-by: Bernhard Beschow <shentey@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>