The "qemu-common.h" include is not used, remove it.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: AlexChen <alex.chen@huawei.com>
Message-Id: <5F8FFB94.3030209@huawei.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>