Tests if removing allocations adds perf

Author: pakrym

src/Microsoft.AspNetCore.Http/HttpContextFactory.cs

@@ -43,18 +43,12 @@ public HttpContext Create(IFeatureCollection featureCollection)
                 throw new ArgumentNullException(nameof(featureCollection));
             }
 
-            var responseCookiesFeature = new ResponseCookiesFeature(featureCollection, _builderPool);
-            featureCollection.Set<IResponseCookiesFeature>(responseCookiesFeature);
-
             var httpContext = new DefaultHttpContext(featureCollection);
             if (_httpContextAccessor != null)
             {
                 _httpContextAccessor.HttpContext = httpContext;
             }
 
-            var formFeature = new FormFeature(httpContext.Request, _formOptions);
-            featureCollection.Set<IFormFeature>(formFeature);
-
             return httpContext;
         }