chore: drop useless functional (#9219)

projects/demo/src/modules/app/abstract.app.ts

@@ -7,8 +7,6 @@ import {TUI_DOC_PAGE_LOADED} from '@taiga-ui/addon-doc';
 import {tuiInjectElement, tuiPure, tuiZonefreeScheduler} from '@taiga-ui/cdk';
 import {debounceTime, map, type Observable, startWith} from 'rxjs';
 
-import {TUI_SELECTED_VERSION_META} from './version-manager/version-manager.providers';
-
 export const DEMO_PAGE_LOADED_PROVIDER = {
     provide: TUI_DOC_PAGE_LOADED,
     deps: [ElementRef, ResizeObserverService],
@@ -38,18 +36,13 @@ export const DEMO_PAGE_LOADED_PROVIDER = {
 
 @Directive({
     standalone: true,
-    host: {
-        '[attr.data-tui-major-version]': 'majorVersion',
-    },
 })
 export abstract class AbstractDemo implements OnInit {
     protected abstract readonly storage: Storage;
     protected abstract readonly router: Router;
 
     private readonly element = tuiInjectElement();
 
-    protected readonly majorVersion = inject(TUI_SELECTED_VERSION_META)?.title;
-
     protected readonly pageLoaded = inject(TUI_DOC_PAGE_LOADED)
         .pipe(takeUntilDestroyed())
         .subscribe(() => this.element.classList.add('_loaded'));