Admin: fix repositioning notices

Fixes #34294.
Props afercia.

Built from https://develop.svn.wordpress.org/trunk@35238


git-svn-id: http://core.svn.wordpress.org/trunk@35204 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/common.js

@@ -369,16 +369,7 @@ $(document).ready( function() {
 		});
 	}
 
-	// Move .notice, .updated and .error alert boxes. Don't move boxes designed to be inline.
-	$firstHeading = $( '.wrap > h1:first' );
-
-	// Back compatibility: if there is no H1, apply to first H2.
-	if ( ! $firstHeading.length ) {
-		$firstHeading = $( '.wrap h2:first' );
-	}
-
-	$firstHeading.nextAll( 'div.updated, div.error, div.notice' ).addClass( 'below-h2' );
-	$( 'div.updated, div.error, div.notice' ).not( '.below-h2, .inline' ).insertAfter( $firstHeading );
+	$( 'div.updated, div.error, div.notice' ).not( '.inline' ).insertAfter( $( '.wrap' ).children( ':header' ).first() );
 
 	// Make notices dismissible
 	$( '.notice.is-dismissible' ).each( function() {