Remove obsolete canvas waiters

packages/e2e-test-utils-playwright/src/admin/visit-site-editor.ts

@@ -13,8 +13,6 @@ export interface SiteEditorQueryParams {
  postType: string;
 }
 
-const CANVAS_SELECTOR = 'iframe[title="Editor canvas"i] >> visible=true';
-
 /**
  * Visits the Site Editor main page
  *
@@ -54,23 +52,4 @@ export async function visitSiteEditor(
  .set( 'core/edit-site', 'welcomeGuideTemplate', false );
  } );
  }
-
- // Check if the current page has an editor canvas first.
- if ( ( await this.page.locator( CANVAS_SELECTOR ).count() ) > 0 ) {
- // The site editor initially loads with an empty body,
- // we need to wait for the editor canvas to be rendered.
- await this.page
- .frameLocator( CANVAS_SELECTOR )
- .locator( 'body > *' )
- .first()
- .waitFor();
- }
-
- // TODO: Ideally the content underneath the canvas loader should be marked inert until it's ready.
- await this.page
- .locator( '.edit-site-canvas-loader' )
- // Bigger timeout is needed for larger entities, for example the large
- // post html fixture that we load for performance tests, which often
- // doesn't make it under the default 10 seconds.
- .waitFor( { state: 'hidden', timeout: 60_000 } );
 }