Remove unused code to automatically select Slurm reservation
Description
We're no longer using a Slurm reservation for calibration jobs - we have partitions (upex-high & upex-middle) to give calibration priority instead. This removes some unused code for xfel-calibrate to automatically decide whether to use a reservation or not.
We're now using the --slurm-partition option from the webservice, which overrides this anyway, and we're not using the --priority option according to caldeploy configs on max-exfl016.
How Has This Been Tested?
CI should exercise the relevant code paths.
Types of changes
- Removal of feature no longer needed
Checklist:
- My code follows the code style of this project.