Remove refence to rebase-strategy

The `rebase-strategy` mention is not related to the feature discussed and it just adds noise

Author: yeikel

content/code-security/dependabot/dependabot-version-updates/controlling-dependencies-updated.md

@@ -256,7 +256,6 @@ updates:
   schedule:
     interval: daily
   open-pull-requests-limit: 20
-  rebase-strategy: "disabled"
   # Increase the version requirements for pip
   # only when required
   versioning-strategy: increase-if-necessary