Update csharp.md to indicate ConnectAsync is deprecated

sdks/csharp/sdk/AgonesSDK.cs

@@ -103,18 +103,6 @@ public IAgonesBetaSDK Beta()
 			return beta;
 		}
 
-
-
-		/// <summary>
-		/// Connect the underlying gRPC channel.
-		/// </summary>
-		/// <returns>Always return true</returns>
-		[Obsolete("No need to call ConnectAsync anymore")]
-		public async Task<bool> ConnectAsync()
-		{
-			return true;
-		}
-
 		/// <summary>
 		/// Tells Agones that the Game Server is ready to take player connections
 		/// </summary>

sdks/csharp/sdk/IAgonesSDK.cs

@@ -21,7 +21,6 @@ namespace Agones
 {
     public interface IAgonesSDK : IDisposable
     {
-        Task<bool> ConnectAsync();
         Task<Status> ReadyAsync();
         Task<Status> AllocateAsync();
         Task<Status> ReserveAsync(long seconds);

site/content/en/docs/Guides/Client SDKs/csharp.md

@@ -74,16 +74,15 @@ To use the AgonesSDK, you will need to import the namespace by adding `using Ago
 var agones = new AgonesSDK();
 ```
 
+{{% feature expiryVersion="1.42.0" %}}
 ### Connection
 
-To connect to the SDK server, either locally or when running on Agones, run the `ConnectAsync()` method.
-This will wait for up to 30 seconds if the SDK server has not yet started and the connection cannot be made,
-and will return `false` if there was an issue connecting.
+The `ConnectAsync()` method is an obsolete function that now always returns true.
 
 ```csharp
 bool ok = await agones.ConnectAsync();
 ```
-
+{{% /feature %}}
 ### Ready
 
 To mark the game server as [ready to receive player connections]({{< relref "_index.md#ready" >}}), call the async method `ReadyAsync()`.
@@ -358,7 +357,12 @@ bool isConnected = await agones.Alpha().IsPlayerConnectedAsync(playerId);
 ```
 
 ## Remarks
+{{% feature expiryVersion="1.42.0" %}}
 - All requests other than `ConnectAsync` will wait for up to 15 seconds before giving up, time to wait can also be set in the constructor.
+{{% /feature %}}
+{{% feature publishVersion="1.42.0" %}}
+- All requests will wait for up to 15 seconds before giving up. Time to wait can also be set in the constructor.
+{{% /feature %}}
 - Default host & port are `localhost:9357`
 - Methods that do not return a data object such as `GameServer` will return a gRPC `Grpc.Core.Status` object. To check the state of the request, check `Status.StatusCode` & `Status.Detail`.
 Ex: