refactor(cockpit): a provider words its text with getLocale and onLocaleChange from the ./i18n entry; the ./i18n/locale export, which gave only those two, is removed

src/cockpitSubjectProviders.js

@@ -167,7 +167,7 @@ function refusal(provider, kinds) {
  *   `entryFace`, `labels` and `look` may each be a function returning the
  *   object: it is called on the provider again whenever they are shown and
  *   when the page's language changes, so its words can follow it
- *   (`./i18n/locale`). A read that throws or is malformed keeps the last
+ *   (`./i18n`). A read that throws or is malformed keeps the last
  *   good one; `look` is on or off and `restPitchDeg` fixed as first read;
  * - `cameraIntervalMs` (optional): 0..1000, null for the Cockpit's default; 0
  *   updates the camera every rendered frame;

src/i18n/hostLocale.js

@@ -1,8 +0,0 @@
-/**
- * The page's language, for an application that words its own text beside
- * Core's: read the active locale, and hear when it changes. Core translates
- * only its own strings; text an application hands Core (a cockpit subject
- * provider's labels and HUD view, say) is shown as given, so the application
- * words it for `getLocale()` and words it again on `onLocaleChange`.
- */
-export { getLocale, onLocaleChange } from './index.js';