Remove unused class

src/activities/Elsa.Activities.Http/Middleware/RequestHandlerMiddleware.cs

@@ -1,24 +0,0 @@
-using System.Threading.Tasks;
-using Elsa.Activities.Http.Services;
-using Microsoft.AspNetCore.Http;
-
-namespace Elsa.Activities.Http.Middleware
-{
-    public class RequestHandlerMiddleware<THandler> where THandler : IRequestHandler
-    {
-        private readonly RequestDelegate _next;
-
-        public RequestHandlerMiddleware(RequestDelegate next)
-        {
-            _next = next;
-        }
-
-        public async Task InvokeAsync(HttpContext httpContext, THandler handler)
-        {
-            var result = await handler.HandleRequestAsync();
-
-            if (result != null && !httpContext.Response.HasStarted)
-                await result.ExecuteResultAsync(httpContext, _next);
-        }
-    }
-}