Remove USE_VOLUMED_CONF: all configuration files have to be mounted

ci-scripts/yaml_files/4g_l2sim_fdd/docker-compose.yml

...ts/yaml_files/4g_rfsimulator_fdd_05MHz/docker-compose.yml

...ml_files/4g_rfsimulator_fdd_05MHz_noS1/docker-compose.yml

...ts/yaml_files/4g_rfsimulator_fdd_10MHz/docker-compose.yml

...ts/yaml_files/4g_rfsimulator_fdd_20MHz/docker-compose.yml

...ripts/yaml_files/4g_rfsimulator_fembms/docker-compose.yml

ci-scripts/yaml_files/4g_rfsimulator_mbms/docker-compose.yml

...ts/yaml_files/4g_rfsimulator_tdd_05MHz/docker-compose.yml

ci-scripts/yaml_files/5g_f1_rfsimulator/docker-compose.yaml

ci-scripts/yaml_files/5g_fdd_rfsimulator/docker-compose.yaml

ci-scripts/yaml_files/5g_l2sim_tdd/docker-compose.yaml

ci-scripts/yaml_files/5g_rfsimulator/docker-compose.yaml

...ripts/yaml_files/5g_rfsimulator_24prb/docker-compose.yaml

ci-scripts/yaml_files/5g_rfsimulator_2x2/docker-compose.yaml

.../yaml_files/5g_rfsimulator_accelleran/docker-compose.yaml

ci-scripts/yaml_files/5g_rfsimulator_e1/docker-compose.yaml

...yaml_files/5g_rfsimulator_fdd_phytest/docker-compose.yaml

...s/yaml_files/5g_rfsimulator_fr2_32prb/docker-compose.yaml

...ts/yaml_files/5g_rfsimulator_tdd_dora/docker-compose.yaml

...ts/yaml_files/5g_rfsimulator_u0_25prb/docker-compose.yaml