How to disable resizable textarea in drupal

I am using the profile module but I remove the resizable textarea on the frontend of website.

There doesn't seem to be an option to enable/disable in drupal or even profile module so I tried implementing this:

Snippet :

function mymodule_form_alter(&$form,$form_state, $form_id){
if ($form_id == 'user_register'){
$form['account_information']['profile_address']['#resizable'] = false;
}
}


It should only point to the profile module. I Couldn't find any other the right code.