Beej

WordPress 3.0+ is great. It shows you your uploaded header images. 
It’s too bad it doesn’t let you delete them as well! 
The answer is here with a simple yet extremely useful little plugin called Delete Custom Header. 
Unlike WP’s “Remove Header” button, this plugin completely removes the header image data 
from the database and the files from the server.
For themes with a header option, like Twenty Ten, Twenty Eleven, etc.

Delete Custom Header

Delete uploaded header images and remove them from the database.

bettersecurity

Rik Lewis

This plugin does not make any changes to your server configuration, such as the .htaccess file, but instead sends the headers as part of the WordPress page response. The reason for this is that many of them are not valid for assets such as stylesheets and images, but are sent anyway if the server configuration method is used.
Unlike many security plugins, these headers are also sent for your admin panel, where security is arguably the most important.
Headers that can be set include… 
* Feature-Policy 
* Referrer-Policy 
* Strict-Transport-Security 
* X-Frame-Options 
* X-Content-Type-Options 
* X-XSS-Protection 
* X-Permitted-Cross-Domain-Policies 
* Expect-CT

Better Headers


Perfect for my needs, allows me to easily add response headers which improves the security of my website.


Perfect for my needs

Improve the security of your website by easily setting HTTP response headers to enable browser protection

Delete Custom Header vs Better Headers