(core) Remove deprecated code

Summary:
The removed code is no longer reachable now that a new version of the plugin
API is being served by Grist on production.

Test Plan: Existing tests.

Reviewers: jarek

Reviewed By: jarek

Subscribers: jarek

Differential Revision: https://phab.getgrist.com/D4081

app/client/components/CustomView.ts

@@ -260,7 +260,6 @@ export class CustomView extends Disposable {
         frame.useEvents(
           ConfigNotifier.create(frame, this.viewSection, {
             access,
-            theme: this.gristDoc.currentTheme,
           }),
           new MinimumLevel(AccessLevel.none)); // none access is enough
         frame.useEvents(

app/client/components/WidgetFrame.ts

@@ -209,11 +209,7 @@ export class WidgetFrame extends DisposableWithEvents {
         this.trigger('ready', this);
         this._readyCalled.set(true);
       }
-      if (
-        event.data.data?.message === 'themeInitialized' ||
-        // DEPRECATED: remove once the plugin API starts sending the message above.
-        event.data.data?.settings?.status === 'initialized'
-      ) {
+      if (event.data.data?.message === 'themeInitialized') {
         this._visible.set(true);
       }
       this._rpc.receiveMessage(event.data);
@@ -572,7 +568,6 @@ export class RecordNotifier extends BaseEventSource {
 
 export interface ConfigNotifierOptions {
   access: AccessLevel;
-  theme: Computed<Theme>;
 }
 
 /**
@@ -580,7 +575,6 @@ export interface ConfigNotifierOptions {
  */
 export class ConfigNotifier extends BaseEventSource {
   private _accessLevel = this._options.access;
-  private _theme = this._options.theme;
   private _currentConfig = Computed.create(this, use => {
     const options = use(this._section.activeCustomOptions);
     return options;
@@ -612,8 +606,6 @@ export class ConfigNotifier extends BaseEventSource {
       options: this._currentConfig.get(),
       settings: {
         accessLevel: this._accessLevel,
-        // DEPRECATED: remove once the plugin API includes the `onThemeChange` handler.
-        ...(fromReady ? {theme: this._theme.get()} : undefined),
       },
       fromReady,
     });

app/plugin/grist-plugin-api.ts

@@ -247,6 +247,8 @@ async function getMappingsIfChanged(data: any): Promise<WidgetColumnMap|null> {
  * Used by tests to wait for all pending requests to settle.
  *
  * TODO: currently only waits for requests for mappings.
+ *
+ * @internal
  */
 export async function testWaitForPendingRequests() {
   return await _activeRefreshReq;