Cleanup env file
- Due to variable precedence, having certain variables in the env file is limiting.
- Removed
DETECTOR_CONFIG
which can change from job to job. The detector version should/can not change job to job. - Removed the BENCHMARK variables since they are will always be overridden by trigger or group/project variables.
- Removed JUGGLER_ related variables since they too should be tuned to each job.
- Removed