[AIRFLOW-5684] docker-compose-kubernetes still used (#6353)

breeze

@@ -900,17 +900,11 @@ EOF
 fi
 
 MAIN_DOCKER_COMPOSE_FILE=${SCRIPTS_CI_DIR}/docker-compose.yml
-KUBERNETES_DOCKER_COMPOSE_FILE=${SCRIPTS_CI_DIR}/docker-compose-kubernetes.yml
 BACKEND_DOCKER_COMPOSE_FILE=${SCRIPTS_CI_DIR}/docker-compose-${BACKEND}.yml
 LOCAL_DOCKER_COMPOSE_FILE=${SCRIPTS_CI_DIR}/docker-compose-local.yml
 
 COMPOSE_FILE=${MAIN_DOCKER_COMPOSE_FILE}:${BACKEND_DOCKER_COMPOSE_FILE}
 
-if [[ "${ENV}" == "kubernetes" ]]; then
-    COMPOSE_FILE=${COMPOSE_FILE}:${KUBERNETES_DOCKER_COMPOSE_FILE}
-fi
-
-
 if [[ "${SKIP_MOUNTING_LOCAL_SOURCES}" != "true" ]]; then
     COMPOSE_FILE=${COMPOSE_FILE}:${LOCAL_DOCKER_COMPOSE_FILE}
 fi