Remove Content edit box from ALL pages (not posts)

Question

I've found several function examples online that remove the content editor based on the template of the page. The issue I am having is that the content is not a post, but the wordpress generic "page" functionality.

I want to remove the main content editor from all pages - not custom post type, just standard WP page.

I have tried the code below. However I believe the edit on the templat-file part is incorrect because this is not a post type:

add_action( 'admin_init', 'hide_editor' );

function hide_editor() {
    // Get the Post ID.
    $post_id = $_GET['post'] ? $_GET['post'] : $_POST['post_ID'] ;
    if( !isset( $post_id ) ) return;

    // Get the name of the Page Template file.
    $template_file = get_post_meta($post_id, '_wp_page_template', true);

    if($template_file == 'page.php'){
        remove_post_type_support('page', 'editor');
    }
}

How else can I do this to all pages ?

Answer 1

Found the following solution which works to remove the content editor from all "page" content. Just chuck it in the functions.php file

add_action('admin_init', 'remove_textarea');

    function remove_textarea() {
            remove_post_type_support( 'page', 'editor' );
    }