Remove debug output from generated code

[treiher]

After the implementation of #796, the built-in debug output, which shows the current state of the state machine, can be removed, as printing the states can now be easily done using the Tick interface (as suggested in #798 (review)). There will still be debug output in case of errors.

[senier]

In a separate discussion we concluded that generation of debug output is more convenient than having to implement state output manually every time. Closing.