[scudo] Remove static error info functions. (#204483)

Android was the only platform using the static error info functions. The
latest Android no longer uses them, so delete these unused functions.

These functions were implicitly exporting implementation details and
made it difficult to implement the multi-region code. This is the final
step to submit the multi-region code and modify how the region code
works.

Remove the error info fuzzer since that was only necessary since so many
values were passed in to the function.

GitOrigin-RevId: 4a86da464e16b8f18d105e620268db3ef808da97