settings: cloudronId is only ever set

we use subscription API to get the cloudronId, never from database

src/settings.js

@@ -34,9 +34,6 @@ exports = module.exports = {
     getLanguage,
     setLanguage,
 
-    getCloudronId,
-    setCloudronId,
-
     getSysinfoConfig,
     setSysinfoConfig,
 
@@ -157,7 +154,6 @@ const gDefaults = (function () {
         provider: 'noop'
     };
     result[exports.LANGUAGE_KEY] = 'en';
-    result[exports.CLOUDRON_ID_KEY] = '';
     result[exports.BACKUP_CONFIG_KEY] = {
         provider: 'filesystem',
         backupFolder: paths.DEFAULT_BACKUP_DIR,
@@ -563,19 +559,6 @@ async function setLanguage(language) {
     notifyChange(exports.LANGUAGE_KEY, language);
 }
 
-async function getCloudronId() {
-    const value = await get(exports.CLOUDRON_ID_KEY);
-    if (value === null) return gDefaults[exports.CLOUDRON_ID_KEY];
-    return value;
-}
-
-async function setCloudronId(cid) {
-    assert.strictEqual(typeof cid, 'string');
-
-    await set(exports.CLOUDRON_ID_KEY, cid);
-    notifyChange(exports.CLOUDRON_ID_KEY, cid);
-}
-
 async function list() {
     const settings = await database.query(`SELECT ${SETTINGS_FIELDS} FROM settings WHERE value IS NOT NULL ORDER BY name`);