Remove Jekyll Serif logo from website header

- Remove logo HTML elements from header.html
- Remove logo configuration from _config.yml
- Clean header to show only navigation menu

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: dvXcode

_config.yml

@@ -3,13 +3,6 @@ permalink: pretty
 title: 'Volovyk ENK'
 description: 'Volovyk ENK provides consulting in Azure, .NET Core, Delphi, Dart & Flutter, plus startup and mobile app development from Bergen, Norway.'
 
-logo:
-  mobile: "images/logo/logo-mobile.svg"
-  mobile_height: "32px"
-  mobile_width: "32px"
-  desktop: "images/logo/logo.svg"
-  desktop_height: "32px"
-  desktop_width: "120px"
 
 home: 
   limit_services: 6

_includes/header.html

@@ -1,11 +1,5 @@
 <div class='header'>
   <div class="container">
-    <div class="logo">
-      <a href="{{ site.baseurl }}"><img width="{{ site.logo.desktop_width }}" height="{{ site.logo.desktop_height }}" alt="{{ site.title }}" src="{{ site.logo.desktop | relative_url }}" /></a>
-    </div>
-    <div class="logo-mobile">
-      <a href="{{ site.baseurl }}"><img width="{{ site.logo.mobile_width }}" height="{{ site.logo.mobile_height }}" alt="{{ site.title }}" src="{{ site.logo.mobile | relative_url }}" /></a>
-    </div>
     {% include main-menu.html %}
     {% include hamburger.html %}
   </div>