[iomgr][windows] Fix suppressed error on AcceptEx pointer retrieval (#32155)

src/core/lib/iomgr/tcp_server_windows.cc

@@ -412,11 +412,9 @@ static grpc_error_handle add_socket_to_server(grpc_tcp_server* s, SOCKET sock,
                &AcceptEx, sizeof(AcceptEx), &ioctl_num_bytes, NULL, NULL);
 
   if (status != 0) {
-    char* utf8_message = gpr_format_message(WSAGetLastError());
-    gpr_log(GPR_ERROR, "on_connect error: %s", utf8_message);
-    gpr_free(utf8_message);
+    error = GRPC_WSA_ERROR(WSAGetLastError(), "AcceptEx pointer retrieval");
     closesocket(sock);
-    return absl::OkStatus();
+    return error;
   }
 
   error = prepare_socket(sock, addr, &port);