refactor(adsense): remove dead code + PageSpeed CSS defer

- Remove unused roi_should_disable_auto_ads() function
- Remove enable_page_level_ads code (Auto Ads disabled in Google panel)
- Defer non-critical CSS with media=print pattern (Fase 4.2 PageSpeed)
- Fix roi-accessibility dependency: roi-theme-style -> roi-main-style

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Public/YoutubeFacade/Infrastructure/Wordpress/YoutubeFacadeHooksRegistrar.php

@@ -50,12 +50,13 @@ final class YoutubeFacadeHooksRegistrar
             return;
         }
 
+        // DIFERIDO: Fase 4.2 PageSpeed - below the fold
         wp_enqueue_style(
             'roi-youtube-facade',
             get_template_directory_uri() . '/Public/YoutubeFacade/Infrastructure/Ui/Assets/Css/youtube-facade.css',
             [],
             ROI_VERSION,
-            'all'
+            'print' // Diferido para no bloquear renderizado
         );
 
         wp_enqueue_script(