Delete Magneto attribute by Attribute-Code

deleteMagentoAttributes.php

<?php

/**
 * Attribute codes to delete
 */
$attribute_codes = array('color', 'size', 'filter_color');
foreach ($attribute_codes as $attribute_code) {
    $attribute = \Mage::getModel('eav/config')->getAttribute('catalog_product', $attribute_code);
    $options = $attribute->getSource()->getAllOptions();
    $optionsDelete = array();
    foreach ($options as $option) {
        if ($option['value'] != "") {
            $optionsDelete['delete'][$option['value']] = true;
            $optionsDelete['value'][$option['value']] = true;
        }
    }
    $installer = new \Mage_Eav_Model_Entity_Setup('core_setup');
    $installer->addAttributeOption($optionsDelete);
}