Remove preview-related Antora config

Author: nvitucci

doc/antora.yml

@@ -1,7 +1,6 @@
 name: graph-data-science
 title: Neo4j Graph Data Science
-version: '2.20-preview'
-prerelease: true
+version: '2.20'
 start_page: ROOT:index.adoc
 nav:
 - modules/ROOT/content-nav.adoc

doc/publish.yml

@@ -6,10 +6,11 @@ site:
 content:
   sources:
   - url: ../../
-    # Includes previous version, current, and preview (master).
+    # Includes previous version and current.
+    # Does not include preview (master) as it is no longer necessary.
     # When updating this, update the version in the
     # `page-add-notes-versions` below too (if relevant).
-    branches: ['2.5', '2.6', '2.7', '2.8', '2.9', '2.10', '2.11', '2.12', '2.13', '2.14', '2.15', '2.16', '2.17', '2.18', '2.19', 'master']
+    branches: ['2.5', '2.6', '2.7', '2.8', '2.9', '2.10', '2.11', '2.12', '2.13', '2.14', '2.15', '2.16', '2.17', '2.18', '2.19']
     start_path: public/doc
     include: public/doc/
     exclude: