Remove columns from admin list

remove-columns-in-admin.php

// Remove columns from Page section
	// -------------------------------------------------------------
	function my_pages_columns( $defaults ) {
	    unset( $defaults['comments'] );
	    unset( $defaults['author'] );
	    unset( $defaults['tags'] );
	    unset( $defaults['date'] );

	    // WordPress SEO
	    unset( $defaults['wpseo-title'] );
	    unset( $defaults['wpseo-metadesc'] );
	    unset( $defaults['wpseo-focuskw'] );
	    unset( $defaults['wpseo-score'] );
	    

	    return $defaults;
	}

	add_filter( 'manage_edit-{POST_TYPE}_columns', 'my_pages_columns' );