Media List Table: Remove the date display in column_parent().

It should be the time at which the post was written, but it was never because of the missing `$parent` argument.

Fixes #33238.

git-svn-id: https://develop.svn.wordpress.org/trunk@34839 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/class-wp-media-list-table.php

@@ -470,8 +470,8 @@ class WP_Media_List_Table extends WP_List_Table {
 					<?php echo $title ?></a><?php
 			} else {
 				echo $title;
-			} ?></strong>,
-			<?php echo get_the_time( __( 'Y/m/d' ) ); ?><br />
+			} ?></strong>
+			<br />
 			<?php
 			if ( $user_can_edit ):
 				$detach_url = add_query_arg( array(