Removing Nodes 25 promo

Author: lidiazuin

preview.yml

@@ -49,13 +49,3 @@ asciidoc:
     docs-home: '/docs'
     neo4j-base-uri: https://neo4j.com # this attribute should be an empty string in publish.yml
     neo4j-docs-base-uri: https://neo4j.com/docs # this attribute should be an empty string in publish.yml
-    # NODES 2025 CFP
-    page-ad-overline-link: https://neo4j.com/nodes-2025/
-    page-ad-overline: ''
-    page-ad-image: '{neo4j-docs-base-uri}/assets/img/nodes-25.png'
-    page-ad-icon: ''
-    page-ad-title: Nov 6 2025
-    page-ad-description: The Call for Papers is now open and we want to hear about your graph-related projects. Submit your talks by June 15
-    page-ad-link: https://neo4j.com/nodes-2025/
-    page-ad-underline-role: button
-    page-ad-underline: Submit your talk