Respect minimum time in universe always

Algorithm.CSharp/OptionChainedAndUniverseSelectionRegressionAlgorithm.cs

@@ -95,7 +95,7 @@ public override DateTime GetNextRefreshTimeUtc()
         /// <summary>
         /// Data Points count of all timeslices of algorithm
         /// </summary>
-        public long DataPoints => 3547404;
+        public long DataPoints => 3547410;
 
         /// <summary>
         /// Data Points count of the algorithm history

Algorithm.CSharp/OptionPriceModelForSupportedAmericanOptionTimeSpanWarmupRegressionAlgorithm.cs

@@ -35,6 +35,6 @@ public override void Initialize()
         /// <summary>
         /// Data Points count of all timeslices of algorithm
         /// </summary>
-        public override long DataPoints => 3547401;
+        public override long DataPoints => 3547407;
     }
 }

Algorithm.CSharp/OptionPriceModelForUnsupportedAmericanOptionTimeSpanWarmupRegressionAlgorithm.cs

@@ -34,6 +34,6 @@ public override void Initialize()
         /// <summary>
         /// Data Points count of all timeslices of algorithm
         /// </summary>
-        public override long DataPoints => 3547401;
+        public override long DataPoints => 3547407;
     }
 }

Algorithm.CSharp/WarmupOptionResolutionRegressionAlgorithm.cs

@@ -50,6 +50,6 @@ public override void OnEndOfAlgorithm()
         /// <summary>
         /// Data Points count of all timeslices of algorithm
         /// </summary>
-        public override long DataPoints => 556822;
+        public override long DataPoints => 558446;
     }
 }

Common/Data/UniverseSelection/Universe.cs

@@ -141,13 +141,6 @@ public virtual bool CanRemoveMember(DateTime utcTime, Security security)
                 return true;
             }
 
-            // if we haven't begun receiving data for this security then it's safe to remove
-            var lastData = security.Cache.GetData();
-            if (lastData == null)
-            {
-                return true;
-            }
-
             Member member;
             if (Securities.TryGetValue(security.Symbol, out member))
             {