function farm_access_uninstall in farmOS 7
Implements hook_uninstall().
File
- modules/farm/ farm_access/ farm_access.install, line 28 
- Farm Access install file.
Code
function farm_access_uninstall() {
  // Delete the farm roles provided by this module.
  $roles = farm_access_farm_access_roles();
  foreach ($roles as $name) {
    user_role_delete($name);
  }
  // Clean up variables.
  variable_del('farm_access_allow_origin');
}