I have installed a blog module onto my Magento 2 platform. This blog module has an observer which automatically adds a new menu item into the primary navigation. I wish to stop this.

The `events.xml` file looks like this:

    <?xml version="1.0"?>
    <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
        <event name="page_block_html_topmenu_gethtml_before">
            <observer name="aw_blog_add_topmenu_items" instance="Aheadworks\Blog\Observer\AddBlogToTopmenuItemsObserver" />
        </event>
    </config>

As you can see it references the observer that adds the link into the primary navigation. Deleting `events.xml` solves my problem, but I'm looking for a method that doesn't involve modifying of core module files.