Remove worktrees usage in antora playbook

Author: fmbenhassine

spring-batch-docs/antora-playbook.yml

@@ -13,7 +13,6 @@ content:
     - url: ..
       branches: HEAD
       start_path: spring-batch-docs
-      worktrees: true
 asciidoc:
   attributes:
     page-stackoverflow-url: https://stackoverflow.com/tags/spring-batch