function plt_hide_b_blocks_menus() {
//Hide the "B Blocks" menu.
remove_menu_page('b-blocks');
//Hide the "B Blocks → Dashboard" menu.
remove_submenu_page('b-blocks', 'b-blocks');
//Hide the "B Blocks → Upgrade" menu.
remove_submenu_page('b-blocks', 'b-blocks-pricing');
}
add_action('admin_menu', 'plt_hide_b_blocks_menus', 1000000000);