Removing append search box config

The theme comes with a config that automatically appends a search box on the theme. However...

The theme shouldn't be placing blocks on pages. This is best done in Block Layout. Additional CSS may be needed to inline-block it with the secondary menu. A dedicated region that's already inline-block with the secondary menu region can also be done to avoid writing additional CSS.

Also, the search box the theme appends uses Drupal's built-in search box. But in most government projects, where page counts can reach the thousands, you'll often end up using a combination of Views + Search API + Solr. The built-in search block is often always replaced by a Views Exposed Filter containing a full-text search box. This means the use cases for this config never go beyond a "quick demo".