Global logdir option does nothing

[huonw]

Describe the bug

Currently (fdfd8d2), the logdir global option doesn't seem to be read by any code. https://github.com/search?q=repo%3Apantsbuild%2Fpants%20logdir&type=code

(NB. there's a separate [workunit-logger].logdir option that is read)

This suggests either:

• there's a bug where the option should be used for something, but isn't
• the option can be deprecated and removed

As yet unclear which.

(Presumably this was used in the past/when it was added, so some git log -S (or similar) delving might be good.)

Pants version

fdfd8d2

OS
N/A

Additional info

Noticed in:

• https://pantsbuild.slack.com/archives/C046T6T9U/p1653367207505069?thread_ts=1653367073.409629&cid=C046T6T9U (2022)
• https://pantsbuild.slack.com/archives/C046T6T9U/p1730737498193349 (2024)

Referenced in:

• support redirecting all debug/trace logging to a file #9988