Remove custom interpreter for sbatch

Making the assumption that sbatch submission scripts are written in
bash. Too complicated to make them work for multiple shells.

flepimop/gempyor_pkg/src/gempyor/batch.py

@@ -660,7 +660,6 @@ def _sbatch_template(
     Raises:
         ValueError: If 'options' is found in `template_data` and `options` is not empty.
     """
-    template_data["interpreter"] = template_data.get("interpreter", "bash")
     if "options" in template_data and options:
         raise ValueError(
             "Found 'options' in `template_data` but `options` is not empty, can only one."

flepimop/gempyor_pkg/src/gempyor/templates/inference_slurm.sbatch.j2

@@ -1,4 +1,4 @@
-#!/usr/bin/env {{ interpreter }}
+#!/usr/bin/env bash
 {%- for opt in options %}
 #SBATCH {{ opt }}
 {%- endfor %}