Remove Advanced Search Link from header in Magento 2
Path – Vendor_Name/Custom_Theme_Name/Magento_Theme/layout/default.xml
<?xml version=”1.0″?>
<page xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:noNamespaceSchemaLocation=”../../../../../vendor/magento/framework/Module/etc/module.xsd”>
<referenceBlock name=”advanced-search-link” remove=”true”/>
</page>