Index: src/wp-admin/install.php
===================================================================
--- src/wp-admin/install.php	(revision 42215)
+++ src/wp-admin/install.php	(working copy)
@@ -77,7 +77,7 @@
 	?>
 </head>
 <body class="wp-core-ui<?php echo $body_classes ?>">
-<p id="logo"><a href="<?php echo esc_url( __( 'https://wordpress.org/' ) ); ?>" tabindex="-1"><?php _e( 'WordPress' ); ?></a></p>
+<p id="logo"><a href="<?php echo esc_url( __( 'https://wordpress.org/' ) ); ?>"><?php _e( 'WordPress' ); ?></a></p>
 
 <?php
 } // end display_header()
Index: src/wp-admin/setup-config.php
===================================================================
--- src/wp-admin/setup-config.php	(revision 42215)
+++ src/wp-admin/setup-config.php	(working copy)
@@ -107,7 +107,7 @@
 	<?php wp_admin_css( 'install', true ); ?>
 </head>
 <body class="<?php echo implode( ' ', $body_classes ); ?>">
-<p id="logo"><a href="<?php echo esc_url( __( 'https://wordpress.org/' ) ); ?>" tabindex="-1"><?php _e( 'WordPress' ); ?></a></p>
+<p id="logo"><a href="<?php echo esc_url( __( 'https://wordpress.org/' ) ); ?>"><?php _e( 'WordPress' ); ?></a></p>
 <?php
 } // end function setup_config_display_header();
 
Index: src/wp-login.php
===================================================================
--- src/wp-login.php	(revision 42215)
+++ src/wp-login.php	(working copy)
@@ -181,7 +181,7 @@
 	do_action( 'login_header' );
 	?>
 	<div id="login">
-		<h1><a href="<?php echo esc_url( $login_header_url ); ?>" title="<?php echo esc_attr( $login_header_title ); ?>" tabindex="-1"><?php echo $login_header_text; ?></a></h1>
+		<h1><a href="<?php echo esc_url( $login_header_url ); ?>" title="<?php echo esc_attr( $login_header_title ); ?>"><?php echo $login_header_text; ?></a></h1>
 	<?php
 
 	unset( $login_header_url, $login_header_title );
