Help with refactor ESP32 support

[pablogs9]

Hello @donRaphaco, I'm removing the libatomic from the extensions repositories and adding it to rcutils package, check this: https://github.com/micro-ROS/micro_ros_setup/pull/171/checks?check_run_id=953530520

But in the case of the ESP32 I'm not able to remove the folder components/libatomics and these two lines without having building errors.

Is possible for you to remove this libatomic dependency for the ESP32 board support? I'm working in this PR: #18 You can commit there if you wish.

Thanks!

[donRaphaco]

It should be fixed with 5c87578