Update test_api_Cat.py

Author: nickmckay

pyCatSim/tests/test_api_Cat.py

@@ -135,7 +135,6 @@ def test_groom_t0(self):
 
         assert cat.health == 4
         assert cat.mood == 3
-        assert cat.energy == 1  
 
 class TestcatCatEat:
     ''' Tests for the eat() method in the Cat class '''