removed change to connection service with fix (#2111)

src/Microsoft.SqlTools.ServiceLayer/Connection/ConnectionService.cs

@@ -1048,37 +1048,9 @@ namespace Microsoft.SqlTools.ServiceLayer.Connection
             foreach (DbConnection connection in connectionsToDisconnect)
             {
                 try
-                {
-                    bool disconnect = false;
-                    if (connection.ConnectionString != null)
-                    {
-                        int totalCount = 0;
-                        foreach (KeyValuePair<string, ConnectionInfo> entry in OwnerToConnectionMap)
-                        {
-                            foreach (DbConnection value in entry.Value.AllConnections)
-                            {
-                                if (value.ConnectionString == connection.ConnectionString)
-                                {
-                                    totalCount++;
-                                }
-                            }
-                        }
-
-                        if (totalCount == 1)
-                        {
-                            disconnect = true;
-                        }
-                    }
-                    else
-                    {
-                        disconnect = true;
-                    }
-
-                    if (disconnect)
                 {
                     connection.Close();
                 }
-                }
                 catch (Exception)
                 {
                     // Ignore