The `ResourceMonitor` server-side logging helper is no longer used. It
periodically logged the webapp process own memory, disk, and CPU usage
behind the `RESOURCE_MONITOR_ENABLED` flag (off by default), and was
also exported from `@trigger.dev/core/v3/serverOnly` with no other
consumers.
This removes the helper, its `@trigger.dev/core` export, the webapp
wiring, and the `RESOURCE_MONITOR_ENABLED` env var. The supervisor has
its own unrelated `ResourceMonitor` class, which is left untouched.
Chris Arderne
64e5d732ad