(doc): Cleanup by removing TODO sections

Author: camilamacedo86

docs/book/src/multiversion-tutorial/deployment.md

@@ -111,10 +111,6 @@ resource.version.group` is for everything else.
 
 </aside>
 
-## Troubleshooting
-
-[steps for troubleshooting](/TODO.md)
-
 [ref-multiver]: /reference/generating-crd.md#multiple-versions "Generating CRDs: Multiple Versions"
 
 [crd-version-pref]: https://kubernetes.io/docs/tasks/extend-kubernetes/custom-resources/custom-resource-definition-versioning/#version-priority "Versions in CustomResourceDefinitions"