WordPress: Disallow users edit its own profile

<?php
//Disallow users edit its own profile

if( !current_user_can('activate_plugins') ) {
  function mytheme_admin_bar_render() {
      global $wp_admin_bar;
      $wp_admin_bar->remove_menu('edit-profile', 'user-actions');
  }
  add_action( 'wp_before_admin_bar_render', 'mytheme_admin_bar_render' );

  function stop_access_profile() {
      if(IS_PROFILE_PAGE === true) {
          wp_die( 'Please contact your administrator to have your profile information changed.' );
      }
      remove_menu_page( 'profile.php' );
      remove_submenu_page( 'users.php', 'profile.php' );
  }
  add_action( 'admin_init', 'stop_access_profile' );
}


?>