Fix toc

Author: timlt

articles/iot/TOC.yml

@@ -62,8 +62,6 @@ items:
           href: tutorial-devkit-stm-b-l475e-iot-hub.md
         - name: Connect an ESPRESSIF ESP32 Kit to IoT Hub
           href: tutorial-devkit-espressif-esp32-freertos-iot-hub.md
-        - name: Troubleshoot embedded tutorials
-          href: troubleshoot-embedded-device-tutorials.md
     - name: Connect a multiple component device
       href: tutorial-multiple-components.md
     - name: Connect a device module