tests/bsim bt host/id/settings: Test scripts cleanup

Use the common scripts to perform common functions
and do a cleanup.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
diff --git a/tests/bsim/bluetooth/host/id/settings/test_scripts/_compile.sh b/tests/bsim/bluetooth/host/id/settings/test_scripts/_compile.sh
index 9c23bf1..af20005 100755
--- a/tests/bsim/bluetooth/host/id/settings/test_scripts/_compile.sh
+++ b/tests/bsim/bluetooth/host/id/settings/test_scripts/_compile.sh
@@ -3,11 +3,14 @@
 # SPDX-License-Identifier: Apache-2.0
 
 set -eu
-bash_source_dir="$(realpath "$(dirname "${BASH_SOURCE[0]}")")"
 
-bsim_bin="${BSIM_OUT_PATH}/bin"
-BOARD="${BOARD:-nrf52_bsim}"
-test_exe="${bsim_bin}/bs_${BOARD}_tests_bsim_bluetooth_host_id_settings_prj_conf"
+: "${ZEPHYR_BASE:?ZEPHYR_BASE must be defined}"
 
-west build -b nrf52_bsim -d build && \
-        cp -v build/zephyr/zephyr.exe "${test_exe}"
+WORK_DIR="${WORK_DIR:-${ZEPHYR_BASE}/bsim_out}"
+INCR_BUILD=1
+
+source ${ZEPHYR_BASE}/tests/bsim/compile.source
+
+app="$(guess_test_relpath)" compile
+
+wait_for_background_jobs
diff --git a/tests/bsim/bluetooth/host/id/settings/test_scripts/settings.sh b/tests/bsim/bluetooth/host/id/settings/test_scripts/settings.sh
index 2221b5c..7e031a9 100755
--- a/tests/bsim/bluetooth/host/id/settings/test_scripts/settings.sh
+++ b/tests/bsim/bluetooth/host/id/settings/test_scripts/settings.sh
@@ -7,7 +7,6 @@
 test_exe="bs_${BOARD}_tests_bsim_bluetooth_host_id_settings_prj_conf"
 simulation_id="id_settings"
 verbosity_level=2
-EXECUTE_TIMEOUT=30
 
 cd ${BSIM_OUT_PATH}/bin