remove unused overload

Author: Daksh

src/Clients/IMessageClient.cs

@@ -29,12 +29,6 @@ public interface IMessageClient
         /// <remarks>https://getstream.io/chat/docs/dotnet-csharp/send_message/?language=csharp#delete-a-message.</remarks>
         Task<GenericMessageResponse> DeleteMessageAsync(string messageId, bool hardDelete);
 
-        /// <summary>
-        /// Deletes a message.
-        /// </summary>
-        /// <remarks>https://getstream.io/chat/docs/dotnet-csharp/send_message/?language=csharp#delete-a-message.</remarks>
-        Task<GenericMessageResponse> DeleteMessageAsync(string messageId, string deletedBy, bool hardDelete = false);
-
         /// <summary>
         /// Deletes a message.
         /// </summary>

src/Clients/MessageClient.cs

@@ -81,9 +81,6 @@ public async Task<GenericMessageResponse> DeleteMessageAsync(string messageId)
         public async Task<GenericMessageResponse> DeleteMessageAsync(string messageId, bool hardDelete)
             => await DeleteMessageAsync(messageId, null, hardDelete, false);
 
-        public async Task<GenericMessageResponse> DeleteMessageAsync(string messageId, string deletedBy, bool hardDelete = false)
-            => await DeleteMessageAsync(messageId, deletedBy, hardDelete, false);
-
         public async Task<GenericMessageResponse> DeleteMessageAsync(string messageId, string deletedBy, bool hardDelete = false, bool deleteForMe = false)
             => await ExecuteRequestAsync<GenericMessageResponse>($"messages/{messageId}",
                 HttpMethod.DELETE,