Tests: remove regression describe block, keep cover block passing cases

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: pattonwebz

tests/jest/rules/ariaHiddenValid.test.js

@@ -251,57 +251,3 @@ describe( 'Aria Hidden Validation', () => {
 	} );
 } );
 
-// Regression tests demonstrating the PRO-966 "before" state: cover block elements
-// were incorrectly flagged when the rule used a bare [aria-hidden="true"] selector.
-// These tests reconfigure axe with the old selector to confirm the violation would
-// have been raised, proving the new :not([class*="wp-block-cover"]) exclusion is
-// what fixes it — not a silent change in axe or the check.
-describe( 'Aria Hidden Validation — PRO-966 regression (cover block before/after)', () => {
-	beforeAll( async () => {
-		const ariaHiddenCheckModule = await import( '../../../src/pageScanner/checks/aria-hidden-valid-usage.js' );
-
-		// Intentionally use the old bare selector — no cover block exclusion.
-		axe.configure( {
-			rules: [ {
-				id: 'aria_hidden_validation',
-				selector: '[aria-hidden="true"]',
-				excludeHidden: false,
-				tags: [ 'wcag2a' ],
-				all: [],
-				any: [ 'aria_hidden_valid_usage' ],
-				none: [],
-			} ],
-			checks: [ ariaHiddenCheckModule.default ],
-		} );
-	} );
-
-	afterAll( () => {
-		axe.reset();
-	} );
-
-	beforeEach( () => {
-		document.body.innerHTML = '';
-	} );
-
-	test( 'BEFORE fix: cover block background overlay was incorrectly flagged', async () => {
-		document.body.innerHTML =
-			'<span class="wp-block-cover__background has-background-dim" aria-hidden="true"></span>';
-
-		const results = await axe.run( document.body, {
-			runOnly: [ 'aria_hidden_validation' ],
-		} );
-
-		expect( results.violations.length ).toBeGreaterThan( 0 );
-	} );
-
-	test( 'BEFORE fix: cover block background image was incorrectly flagged', async () => {
-		document.body.innerHTML =
-			'<img class="wp-block-cover__image-background wp-image-123" alt="" src="/photo.jpg" aria-hidden="true">';
-
-		const results = await axe.run( document.body, {
-			runOnly: [ 'aria_hidden_validation' ],
-		} );
-
-		expect( results.violations.length ).toBeGreaterThan( 0 );
-	} );
-} );