Break on any error when flushing a client

libraries/WiFi/src/WiFiClient.cpp

@@ -266,13 +266,10 @@ void WiFiClient::flush() {
     while(a){
         toRead = (a>WIFI_CLIENT_FLUSH_BUFFER_SIZE)?WIFI_CLIENT_FLUSH_BUFFER_SIZE:a;
         if(recv(fd(), buf, toRead, MSG_DONTWAIT) < 0) {
-            if(errno != EWOULDBLOCK){
             log_e("%d", errno);
             stop();
             break;
         }
-            delay(1);//give some time
-        }
         a = available();
     }
     free(buf);