2023-09-15

native python: stop setting PAR_LAUNCH_TIMESTAMP

Summary:
This messes with cli telemetry

Created from CodeHub with https://fburl.com/edit-in-codehub

Reviewed By: itamaro

Differential Revision: D49275018

fbshipit-source-id: c6f2672f3f532fe865a8afb61e6f84af7a798522