clean up

com.unity.perception/Tests/Runtime/Randomization/RandomizerTests/RandomizerTests.cs

             m_Scenario = m_TestObject.AddComponent<FixedLengthScenario>();
             m_Scenario.constants.totalIterations = totalIterations;
             m_Scenario.constants.framesPerIteration = framesPerIteration;
-            // yield return null; // Skip first frame
         }
 
         [Test]

com.unity.perception/Tests/Runtime/Randomization/ScenarioTests/ScenarioTests.cs

                     m_Scenario.AddRandomizer(rnd);
                 }
             }
-
-            // yield return null; // Skip first frame
             yield return null; // Skip first Update() frame
         }