removed 2.7 2.8 from cp docs

Author: ozRunAI

docs/admin/runai-setup/self-hosted/k8s/upgrade.md

@@ -55,7 +55,6 @@ To remove the ownership in an older installation, run:
 kubectl patch pvc -n runai-backend pvc-thanos-receive  -p '{"metadata": {"annotations":{"helm.sh/resource-policy": "keep"}}}'
 kubectl patch pvc -n runai-backend pvc-postgresql  -p '{"metadata": {"annotations":{"helm.sh/resource-policy": "keep"}}}'
 ```
-
 #### Ingress
 
 Delete the ingress object which will be recreated by the control plane upgrade
@@ -72,9 +71,7 @@ The Run:ai control-plane installation has been rewritten and is no longer using
 
 
 ## Upgrade Control Plane
-
 ### Upgrade from version 2.13, or later
-
 === "Connected"
 
     ``` bash
@@ -87,9 +84,7 @@ The Run:ai control-plane installation has been rewritten and is no longer using
     helm get values runai-backend -n runai-backend > runai_control_plane_values.yaml
     helm upgrade runai-backend control-plane-<NEW-VERSION>.tgz -n runai-backend  -f runai_control_plane_values.yaml --reset-then-reuse-values
     ```
-
 ### Upgrade from version 2.9
-    
 * Create a `tls secret` as described in the [control plane installation](backend.md). 
 * Upgrade the control plane as described in the [control plane installation](backend.md). During the upgrade, you must tell the installation __not__ to create the two PVCs:
 

docs/admin/runai-setup/self-hosted/ocp/upgrade.md

@@ -65,7 +65,6 @@ The Run:ai control-plane installation has been rewritten and is no longer using
 * Find previous customizations to the control plane if such exist. Run:ai provides a utility for that here `https://raw.githubusercontent.com/run-ai/docs/v2.13/install/backend/cp-helm-vals-diff.sh`. For information on how to use this utility please contact Run:ai customer support. 
 * Search for the customizations you found in the [optional configurations](./backend.md#additional-runai-configurations-optional) table and add them in the new format.  
 
-
 ## Upgrade Control Plane
 ### Upgrade from version 2.13, or later
 === "Connected"
@@ -80,7 +79,6 @@ The Run:ai control-plane installation has been rewritten and is no longer using
     helm get values runai-backend -n runai-backend > runai_control_plane_values.yaml
     helm upgrade runai-backend control-plane-<NEW-VERSION>.tgz -n runai-backend  -f runai_control_plane_values.yaml --reset-then-reuse-values
     ```
-
 ### Upgrade from version 2.9
 
 === "Connected"