This plugin adds the functionality to remove the WordPress default favicon since WordPress 5.4.
The WP Favicon Remover plugin adds the functionality to remove the WordPress default favicon since WordPress 5.4. If the favicon does not change after the plugin install, you have to clear the browser cache. If you use Site Icon via Theme Customizer, just uninstall this plugin.
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wp-favicon-remover
directory into your wp-content/plugins
directoryNothing.