A question and the following discussion on Slack sparked the request for this change: https://redhat-internal.slack.com/archives/C02SPBZ4GPR/p1739789940874799

1. - [ ] Mandatory: Add the required version to the Fix version/s field.

2. - [ ] Mandatory: Choose the type of documentation change or review.

• [X ] We need to update to an existing topic

• [ ] We need to add a new document to an existing section

• [ ] We need a whole new section; this is a function not
  documented before and doesn't belong in any current section

• [ ] We need an Operator Advisory review and approval

• [ ] We need a z-Stream (Errata) Advisory and Release note for
  MCE and/or ACM

3. - [ ] Mandatory: Find the link to where the documentation update
should go and add it to the recommended changes. You can either use the
published doc or the staged repo for this step:

https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_management_for_kubernetes/2.13/html/multicluster_engine_operator_with_red_hat_advanced_cluster_management/siteconfig-intro#scale-in-worker-nodes

Add a step to this topic to remove the node definition / NodeSpec section from the spec.nodes in the ClusterInstance resource after the node is deleted.

5. - [ ] Mandatory for bugs: What is the diff? Clearly define what the
problem is, what the change is, and link to the current documentation. Only
use this for a documentation bug.

https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_management_for_kubernetes/2.13/html/multicluster_engine_operator_with_red_hat_advanced_cluster_management/siteconfig-intro#scale-in-worker-nodes

New step to remove the the node definition / NodeSpec section from the spec.nodes in the ClusterInstance resource after the node is deleted.