fix(mqtt_cxx): Remove clang-tidy for mqtt-cxx as unsupported on latest

Author: david-cermak

test_app/CMakeLists.txt

@@ -7,7 +7,6 @@ include($ENV{IDF_PATH}/tools/cmake/version.cmake)
 set(EXTRA_COMPONENT_DIRS
     ../components/eppp_link
     ../components/esp_modem
-    ../components/esp_mqtt_cxx
     ../components/esp_websocket_client
     ../components/console_cmd_ifconfig
     ../components/console_cmd_ping