Remove the assertion as cros_start_vm works fine with the pid still there.

BUG=chromium-os:21610
TEST=Pyflakes.

Change-Id: I7040ee6c2bcb36852d481aeca8da97533bc9e9c1
Reviewed-on: http://gerrit.chromium.org/gerrit/10448
Tested-by: Chris Sosa <sosa@chromium.org>
Reviewed-by: Don Garrett <dgarrett@chromium.org>
Commit-Ready: Chris Sosa <sosa@chromium.org>
1 file changed