diff --git a/esmvaltool/utils/recipe_test_workflow/recipe_test_workflow/site/jasmin-env b/esmvaltool/utils/recipe_test_workflow/recipe_test_workflow/site/jasmin-env
deleted file mode 100644
index 34a7ad9b6f..0000000000
--- a/esmvaltool/utils/recipe_test_workflow/recipe_test_workflow/site/jasmin-env
+++ /dev/null
@@ -1,55 +0,0 @@
-#!/bin/bash -l
-#
-# Usage metoffice-env COMMAND
-#
-# ENVIRONMENT
-#   MODULE_NAME         The name of the module to load
-#   PYTHONPATH_PREPEND  The path to prepend to PYTHONPATH after loading the
-#                       module
-#   QUIET_MODE          Don't print confirmation messages
-#
-# OPTIONS
-#   COMMAND             The command to execute with options
-set -eu
-
-module_count(){
-    module list -t 2>&1 | wc -l
-}
-
-safe_load(){
-    PRE_LOAD_COUNT=$(module_count)
-
-    module load "${1}"
-    # Check module count to determine whether module load was successful.
-    if (( PRE_LOAD_COUNT == $(module_count) )); then
-        echo "[ERROR] Failed to load: ${1}"
-        exit 1
-    fi
-}
-
-# Must be run before importing numpy, see
-# https://www-avd/sci/dask_best_practice/numpy-threads.html.
-export OMP_NUM_THREADS=1
-export OPENBLAS_NUM_THREADS=1
-export MKL_NUM_THREADS=1
-export VECLIB_MAXIMUM_THREADS=1
-export NUMEXPR_NUM_THREADS=1
-
-# Ensure '~/.local' isn't added to 'sys.path'.
-export PYTHONNOUSERSITE=True
-
-safe_load "${MODULE_NAME}"
-
-# If PYTHONPATH_PREPEND has been set, prepend it to PYTHONPATH to extend the
-# Python environment.
-if [[ ! -z ${PYTHONPATH_PREPEND:-} ]]; then
-    echo "[INFO] Prepending the following to PYTHONPATH: ${PYTHONPATH_PREPEND}"
-    export PYTHONPATH=${PYTHONPATH_PREPEND}:${PYTHONPATH:-}
-fi
-
-if [[ -z ${QUIET_MODE:-} ]]; then
-    echo "[OK] Modules loaded."
-fi
-
-command="/usr/bin/time -v -o ${CYLC_TASK_LOG_ROOT}.time $@"
-exec ${command}