Update the PCR KLs for performance numbers (#18793)

src/current/_includes/v23.2/known-limitations/physical-cluster-replication.md

@@ -1,8 +1,4 @@
 - Physical cluster replication is supported only on CockroachDB {{ site.data.products.core }} in new v23.2 clusters. Physical Cluster Replication cannot be enabled on clusters that have been upgraded from a previous version of CockroachDB.
-- Cockroach Labs supports physical cluster replication up to the following scale:
-    - Initial data load: 2TB
-    - Read maximum: 1000 reads per second
-    - Write maximum: 850 writes per second
 - Read queries are not supported on the standby cluster before [cutover]({% link {{ page.version.version }}/cutover-replication.md %}).
 - The primary and standby cluster **cannot have different [region topology]({% link {{ page.version.version }}/topology-patterns.md %})**. For example, replicating a multi-region primary cluster to a single-region standby cluster is not supported. Mismatching regions between a multi-region primary and standby cluster is also not supported.
 - Cutting back to the primary cluster after a cutover is a manual process. Refer to [Cut back to the primary cluster]({% link {{ page.version.version }}/cutover-replication.md %}#cut-back-to-the-primary-cluster). In addition, after cutover, to continue using physical cluster replication, you must configure it again.