remove lists test on manticore, due to speed issues

tests/test_lists.py

@@ -5,6 +5,8 @@ import deepstate_base
 
 class ListsTest(deepstate_base.DeepStateTestCase):
   def run_deepstate(self, deepstate):
+    if deepstate == "deepstate-manticore":
+       return # Just skip for now, we know it's too slow
     (r, output) = logrun.logrun([deepstate, "build/examples/Lists"],
                   "deepstate.out", 3000)
     self.assertEqual(r, 0)