Remove Kiln from local courseware setup

ansible/templates/runtime.env.j2

@@ -34,5 +34,3 @@ PROMPTFOO_BIN="{{ courseware_tools_dir }}/promptfoo/node_modules/.bin/promptfoo"
 WIKI_DIR="{{ courseware_wiki_repo_dir }}"
 WIKI_RUNTIME_CONFIG_PATH="{{ courseware_wiki_runtime_config_path }}"
 LLAMA_CPP_BIN_DIR="{{ courseware_llama_cpp_bin_dir }}"
-KILN_LINUX_BIN="{{ courseware_apps_dir }}/kiln/Kiln"
-KILN_LAUNCH_PATH="{{ courseware_apps_dir }}/kiln/Kiln"