Remove Private: and Protected: from the_title() in WordPress

gistfile1.txt

function the_title_trim( $title ) {
  $pattern[0] = '/Protected:/';
  $pattern[1] = '/Private:/';
  $replacement[0] = ''; // Enter some text to put in place of Protected:
  $replacement[1] = ''; // Enter some text to put in place of Private:
  return preg_replace($pattern, $replacement, $title);
}
add_filter('the_title', 'the_title_trim');

alternative:

function the_title_trim($content) {
  return '%s';
}
add_filter('private_title_format', 'the_title_trim');
add_filter('protected_title_format', 'the_title_trim');

@retlehs thanks for the heads-up. That's a useful alternative.