unnecessary call of wp_cache_delete( 'get_pages', 'posts' ) in clean_post_cache()

[szaqal21]

Since results of get_pages() are cached as seperate keys:

$cache_key = "get_pages:$key:$last_changed";
...
wp_cache_set( $cache_key, $page_structure, 'posts' );

call of:

wp_cache_delete('get_pages', 'posts');

in

clean_post_cache()

does nothing, should be removed.

[wonderboymusic]

Probably

[wonderboymusic]

In 28875:

Remove obsolete wp_cache_delete('get_pages', 'posts') from clean_post_cache().

Fixes #27459.