Update regression algorithms

Algorithm.CSharp/SecurityInitializationOnReAdditionForEquityRegressionAlgorithm.cs

@@ -47,7 +47,7 @@ namespace QuantConnect.Algorithm.CSharp
             SetStartDate(StartTimeToUse);
             SetEndDate(EndTimeToUse);
 
-            var seeder = new FuncSecuritySeeder((security) =>
+            SetSecurityInitializer(security =>
             {
                 if (!_securityInializationCounts.TryGetValue(security, out var count))
                 {
@@ -55,10 +55,8 @@ namespace QuantConnect.Algorithm.CSharp
                 }
                 _securityInializationCounts[security] = count + 1;
 
-                Debug($"[{Time}] Seeding {security.Symbol}");
-                return GetLastKnownPrices(security);
+                Debug($"[{Time}] Initializing security for {security.Symbol}");
             });
-            SetSecurityInitializer(security => seeder.SeedSecurity(security));
 
             _security = AddSecurityImpl();
 
@@ -192,7 +190,7 @@ namespace QuantConnect.Algorithm.CSharp
         /// <summary>
         /// Data Points count of the algorithm history
         /// </summary>
-        public virtual int AlgorithmHistoryDataPoints => 7696;
+        public virtual int AlgorithmHistoryDataPoints => 3848;
 
         /// <summary>
         /// Final status of the algorithm