remove duplicate copyrights (#6696)

Author: SimonCropp

src/contrib/cluster/Akka.Cluster.Metrics.Tests/Helpers/ClusterMetricsTestConfig.cs

@@ -5,13 +5,6 @@
 // </copyright>
 //-----------------------------------------------------------------------
 
-// //-----------------------------------------------------------------------
-// // <copyright file="ClusterMetricsTestConfig.cs" company="Akka.NET Project">
-// //     Copyright (C) 2009-2020 Lightbend Inc. <http://www.lightbend.com>
-// //     Copyright (C) 2013-2020 .NET Foundation <https://github.com/akkadotnet/akka.net>
-// // </copyright>
-// //-----------------------------------------------------------------------
-
 namespace Akka.Cluster.Metrics.Tests.Helpers
 {
     /// <summary>

src/contrib/cluster/Akka.Cluster.Metrics/Routing/WeightedRoutees.cs

@@ -5,13 +5,6 @@
 // </copyright>
 //-----------------------------------------------------------------------
 
-// //-----------------------------------------------------------------------
-// // <copyright file="WeightedRoutees.cs" company="Akka.NET Project">
-// //     Copyright (C) 2009-2019 Lightbend Inc. <http://www.lightbend.com>
-// //     Copyright (C) 2013-2019 .NET Foundation <https://github.com/akkadotnet/akka.net>
-// // </copyright>
-// //-----------------------------------------------------------------------
-
 using System;
 using System.Collections.Immutable;
 using System.Linq;

src/contrib/persistence/Akka.Persistence.Sql.Common/Extensions/DbConnectionExtensions.cs

@@ -1,9 +1,9 @@
-// //-----------------------------------------------------------------------
-// // <copyright file="DbConnectionExtensions.cs" company="Akka.NET Project">
-// //     Copyright (C) 2009-2023 Lightbend Inc. <http://www.lightbend.com>
-// //     Copyright (C) 2013-2023 .NET Foundation <https://github.com/akkadotnet/akka.net>
-// // </copyright>
-// //-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+// <copyright file="DbConnectionExtensions.cs" company="Akka.NET Project">
+//     Copyright (C) 2009-2023 Lightbend Inc. <http://www.lightbend.com>
+//     Copyright (C) 2013-2023 .NET Foundation <https://github.com/akkadotnet/akka.net>
+// </copyright>
+//-----------------------------------------------------------------------
 
 using System;
 using System.Data;

src/contrib/persistence/Akka.Persistence.Sql.Common/Extensions/IsolationLevelExtensions.cs

@@ -1,9 +1,9 @@
-// //-----------------------------------------------------------------------
-// // <copyright file="HoconExtensions.cs" company="Akka.NET Project">
-// //     Copyright (C) 2009-2023 Lightbend Inc. <http://www.lightbend.com>
-// //     Copyright (C) 2013-2023 .NET Foundation <https://github.com/akkadotnet/akka.net>
-// // </copyright>
-// //-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+// <copyright file="HoconExtensions.cs" company="Akka.NET Project">
+//     Copyright (C) 2009-2023 Lightbend Inc. <http://www.lightbend.com>
+//     Copyright (C) 2013-2023 .NET Foundation <https://github.com/akkadotnet/akka.net>
+// </copyright>
+//-----------------------------------------------------------------------
 
 using System.Data;
 using System.Runtime.CompilerServices;