@jplatenius: Did you change that directly in core theme file catchkathmandu-functions.php? Please don’t edit any core theme files directly, as these theme files will be reverted back to original when you update the theme.
So, to remove the home. Either you just build “Custom Menu” from “Appearance => Menus” and assign location to your menu. This Custom Menu will replace your Page Menu.
But if you want to keep your page menu and just remove the home then you need to build child theme, create functions.php file in your child theme and add the following code:
<?php
/**
* Catch Kathmandu Child functions and definitions
*/
// Removing the Default Action Hook
function unhook_catchkathmandu_functions() {
remove_filter( 'wp_page_menu_args', 'catchkathmandu_page_menu_args' );
}
add_action( 'init', 'unhook_catchkathmandu_functions' );