Remove the one-time env-to-config migration from the settings

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

server/src/api.rs

@@ -66,7 +66,6 @@ pub fn router(app: AppState) -> Router {
         .route("/folders/{id}/access", put(set_folder_access))
         .route("/config", get(get_config).patch(patch_config))
         .route("/config/raw", get(get_config_raw).put(put_config_raw))
-        .route("/config/inline-env", get(inline_env_preview).post(inline_env_apply))
         .route("/providers/reload", post(reload_providers))
         .route("/models", get(models))
         .route("/agents", get(agents))
@@ -290,24 +289,6 @@ struct RawBody {
     text: String,
 }
 
-/// Which ${VAR} references the config still has (and whether they are set).
-async fn inline_env_preview(Extension(user): Extension<User>, State(app): State<AppState>) -> ApiResult {
-    require_admin(&user)?;
-    let (_, set, unset) = config::inline_env(&app.config_text()?)?;
-    Ok(Json(json!({"set": set, "unset": unset})))
-}
-
-/// Move the values of set environment variables into the config file.
-async fn inline_env_apply(Extension(user): Extension<User>, State(app): State<AppState>) -> ApiResult {
-    require_admin(&user)?;
-    let (text, set, unset) = config::inline_env(&app.config_text()?)?;
-    if !set.is_empty() {
-        app.save_config(&text).await?;
-        app.audit(Some(&user), "config.inline_env", set.join(", "), "");
-    }
-    Ok(Json(json!({"set": set, "unset": unset})))
-}
-
 async fn put_config_raw(Extension(user): Extension<User>, State(app): State<AppState>, Json(body): Json<RawBody>) -> ApiResult {
     require_admin(&user)?;
     app.save_config(&body.text).await?;