CNV-71950: removed last mention of RHEL 8

Author: MirzWeiss

modules/virt-rhel-9.adoc

@@ -7,9 +7,7 @@
 = {op-system-base} 9 compatibility
 
 [role="_abstract"]
-{VirtProductName} {VirtVersion} is based on {op-system-base-full} 9. You can update to {VirtProductName} {VirtVersion} from a version that was based on {op-system-base} 8 by following the standard {VirtProductName} update procedure. No additional steps are required.
-
-As in previous versions, you can perform the update without disrupting running workloads. {VirtProductName} {VirtVersion} supports live migration from {op-system-base} 8 nodes to {op-system-base} 9 nodes.
+{VirtProductName} {VirtVersion} is based on {op-system-base-full} 9.
 
 [id="rhel-9-machine-type_{context}"]
 == {op-system-base} 9 machine type