Remove WordPress Meta-Boxes from Post & Page Editor Dashboards

Add the following code to your WordPress theme’s function.php file, or a functionality plugin to remove WordPress Meta-Boxes from Post & Page Editor Pages.

function remove_extra_meta_boxes() {
remove_meta_box( 'postcustom' , 'post' , 'normal' ); // custom fields for posts
remove_meta_box( 'postcustom' , 'page' , 'normal' ); // custom fields for pages
remove_meta_box( 'postexcerpt' , 'post' , 'normal' ); // post excerpts
remove_meta_box( 'postexcerpt' , 'page' , 'normal' ); // page excerpts
remove_meta_box( 'commentsdiv' , 'post' , 'normal' ); // recent comments for posts
remove_meta_box( 'commentsdiv' , 'page' , 'normal' ); // recent comments for pages
remove_meta_box( 'tagsdiv-post_tag' , 'post' , 'side' ); // post tags
remove_meta_box( 'tagsdiv-post_tag' , 'page' , 'side' ); // page tags
remove_meta_box( 'trackbacksdiv' , 'post' , 'normal' ); // post trackbacks
remove_meta_box( 'trackbacksdiv' , 'page' , 'normal' ); // page trackbacks
remove_meta_box( 'commentstatusdiv' , 'post' , 'normal' ); // allow comments for posts
remove_meta_box( 'commentstatusdiv' , 'page' , 'normal' ); // allow comments for pages
remove_meta_box('slugdiv','post','normal'); // post slug
remove_meta_box('slugdiv','page','normal'); // page slug
remove_meta_box('pageparentdiv','page','side'); // Page Parent
}
add_action( 'admin_menu' , 'remove_extra_meta_boxes' );