docs: theme: Remove 'News' navlink
Not really useful at the moment, might get added back later.
</header>
<nav>
<a href="{{ pathto('docs') }}">Documentation</a>
- <a href="{{ pathto('news') }}">News</a>
<a href="{{ pathto('docs/contributing') }}">Contribute</a>
<a href="{{ pathto('community') }}">community</a>
</nav>
