qemu.py: remove unused import

Removing 'import sys' as it's not used anywhere.
Signed-off-by: NAmador Pahim <apahim@redhat.com>
Message-Id: <20171114102246.22221-2-apahim@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

scripts/qemu.py

@@ -15,7 +15,6 @@
 import errno
 import logging
 import os
-import sys
 import subprocess
 import qmp.qmp