Band-aid fixes for conflict between Block Title Link and Menu Block modules (D7)

module.module

<?php
// Mini module to remove Block Title Link options from Menu Block blocks

function MODULE_form_alter(&$form, &$form_state, $form_id) {
  if ($form_id == 'block_admin_configure') {
    $module = $form['module']['#value'];

    if ($module == 'menu_block') {
      // remove fieldset
      unset($form['settings']['block_titlelink']);
      // remove validate and submit handlers
      $form['#validate'] = array_diff($form['#validate'], array('block_titlelink_form_validate'));
      $form['#submit'] = array_diff($form['#submit'], array('block_titlelink_form_submit'));
    }
  }
}
?>

template.php

<?php
function THEME_preprocess_block(&$variables) {
  $block = &$variables['elements']['#block'];
  if ($block->module == 'menu_block') {
    unset($block->title_link);
  }
}
?>