Remove SqlInternalConnection

Author: benrr101

src/Microsoft.Data.SqlClient/netcore/src/Microsoft.Data.SqlClient.csproj

@@ -702,9 +702,6 @@
     <Compile Include="$(CommonSourceRoot)Microsoft\Data\SqlClient\SqlInfoMessageEventHandler.cs">
       <Link>Microsoft\Data\SqlClient\SqlInfoMessageEventHandler.cs</Link>
     </Compile>
-    <Compile Include="$(CommonSourceRoot)Microsoft\Data\SqlClient\SqlInternalConnection.cs">
-      <Link>Microsoft\Data\SqlClient\SqlInternalConnection.cs</Link>
-    </Compile>
     <Compile Include="$(CommonSourceRoot)Microsoft\Data\SqlClient\SqlInternalConnectionTds.cs">
       <Link>Microsoft\Data\SqlClient\SqlInternalConnectionTds.cs</Link>
     </Compile>

src/Microsoft.Data.SqlClient/netfx/src/Microsoft.Data.SqlClient.csproj

@@ -866,9 +866,6 @@
     <Compile Include="$(CommonSourceRoot)Microsoft\Data\SqlClient\SqlInfoMessageEventHandler.cs">
       <Link>Microsoft\Data\SqlClient\SqlInfoMessageEventHandler.cs</Link>
     </Compile>
-    <Compile Include="$(CommonSourceRoot)Microsoft\Data\SqlClient\SqlInternalConnection.cs">
-      <Link>Microsoft\Data\SqlClient\SqlInternalConnection.cs</Link>
-    </Compile>
     <Compile Include="$(CommonSourceRoot)Microsoft\Data\SqlClient\SqlInternalConnectionTds.cs">
       <Link>Microsoft\Data\SqlClient\SqlInternalConnectionTds.cs</Link>
     </Compile>

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlDelegatedTransaction.cs

@@ -32,10 +32,10 @@ internal sealed class SqlDelegatedTransaction : IPromotableSinglePhaseNotificati
 
         private bool _active;                // Is the transaction active?
 
-        internal SqlDelegatedTransaction(SqlInternalConnection connection, Transaction tx)
+        internal SqlDelegatedTransaction(SqlInternalConnectionTds connection, Transaction tx)
         {
             Debug.Assert(connection != null, "null connection?");
-            _connection = (SqlInternalConnectionTds)connection;
+            _connection = connection;
             _atomicTransaction = tx;
             _active = false;
             System.Transactions.IsolationLevel systxIsolationLevel = tx.IsolationLevel;

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlInternalConnection.cs

@@ -24,7 +24,7 @@
 
 namespace Microsoft.Data.SqlClient
 {
-    internal class SqlInternalConnectionTds : SqlInternalConnection, IDisposable
+    internal class SqlInternalConnectionTds : DbConnectionInternal, IDisposable
     {
         #region Constants
 

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlInternalConnectionTds.cs

@@ -28,7 +28,7 @@ public sealed class SqlTransaction : DbTransaction
         private bool _isFromApi;
 
         internal SqlTransaction(
-            SqlInternalConnection internalConnection,
+            SqlInternalConnectionTds internalConnection,
             SqlConnection con,
             IsolationLevel iso,
             SqlInternalTransaction internalTransaction)
@@ -42,13 +42,13 @@ internal SqlTransaction(
             if (internalTransaction == null)
             {
                 InternalTransaction = new SqlInternalTransaction(
-                    (SqlInternalConnectionTds)internalConnection,
+                    internalConnection,
                     TransactionType.LocalFromAPI,
                     this);
             }
             else
             {
-                Debug.Assert(((SqlInternalConnectionTds)internalConnection).CurrentTransaction == internalTransaction,
+                Debug.Assert(internalConnection.CurrentTransaction == internalTransaction,
                     "Unexpected Parser.CurrentTransaction state!");
                 InternalTransaction = internalTransaction;
                 InternalTransaction.InitParent(this);