Remove respondjs from the libraries, this is a legacy library

[rob-bar]

We should remove respond.js in terms of non legacy support.

$libraries['respond'] = array(
   'title' => 'Respond',
   'website' => 'https://github.com/scottjehl/Respond',
   'version' => '1.4.2',
   'js' => array(
     drupal_get_path('theme', 'lndm_omega') . "/bower_components/respond/respond$min_extension" => array(),
   ),
 );