Update Gemfile

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: m-reuter

Gemfile

@@ -3,15 +3,8 @@ source 'https://rubygems.org'
 # Specify Ruby version for consistency
 ruby '>= 2.7.0'
 
-# Core Jekyll gem for static site generation
-gem "jekyll"
-
 # GitHub Pages gem (includes Jekyll and plugins used by GitHub Pages)
 gem 'github-pages'
-
-# Pagination support for posts and publications
-gem 'jekyll-paginate'
-
 # HTML validation and link checking for CI/CD
 gem "html-proofer"