Revert "Include --job.save_config_file "params.json" in mast launch script. (#272)" (#278)

This reverts commit feee51a.

stack-info: PR: #278, branch: xmfan/stack/29

Author: xmfan

mast/run_torchtitan.sh

@@ -78,5 +78,4 @@ python torchtitan/train.py \
 --validation.dataset_path "${dataset_path}" \
 --metrics.save_tb_folder "${save_tb_folder}" \
 --metrics.disable_color_printing \
---job.save_config_file "params.json" \
 $overrides