qemu: blockjob: Don't reset state when entering sync blockjob

job->newstate is now used internally all the time so there's no need to
clear it as it already has correct value.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/qemu/qemu_blockjob.c

@@ -428,7 +428,6 @@ qemuBlockJobSyncBegin(qemuBlockJobDataPtr job)
 
     VIR_DEBUG("disk=%s", NULLSTR(diskdst));
     job->synchronous = true;
-    job->newstate = -1;
 }