Remove mention of cluster virtualization / multitenancy from v23.1 re…

…lease notes

src/current/_includes/releases/v23.1/v23.1.0-alpha.1.md

@@ -180,7 +180,6 @@ Release Date: December 19, 2022
 - The **Transaction resource usage** card on the **Transaction Fingerprin**t page now includes an "Idle latency" row, representing the time spent by the application performing other work while holding this transaction open. [#92951][#92951]
 - The **Databases table** page now displays all the grants in a single row per user. [#92871][#92871]
 - Added a goroutine scheduling latency graph to the **Overload** dashboard in the DB Console. It shows what the per-node p99 scheduling latency is for goroutines. [#93217][#93217]
-- Added a top-level dropdown in the DB Console which lists tenants the user has logged into. If the cluster is not a multi-tenant host, the dropdown is not displayed. [#92694][#92694]
 - CockroachDB now prevents polling `/settings`, `/nodes_ui,` and `/cluster` endpoints on incorrect login. [#93211][#93211]
 - The **Statement** and **Transaction** pages for tenant clusters gained region columns and filters for multi-region tenants. [#92357][#92357]
 

src/current/_includes/releases/v23.1/v23.1.0-alpha.2.md

@@ -156,7 +156,6 @@ We chose a default of `25h` originally to accommodate daily incremental backups
 - Added a time picker to the **Workload Insights Overview** pages in the DB Console. [#92285][#92285]
 - Added all three session status options (`Active`, `Closed`, and `Idle`) and an empty results placeholder. [#95005][#95005]
 - Added a list of all statement fingerprints that use a given index to the **Index Details page**. [#94863][#94863]
-- The DB Console will now clear the tenant cookie on an API call returning a `401` error in order to allow for multitenant login once more. [#95020][#95020]
 - Removed `reset sql stats` and `reset index stats` from the DB Console when the user is a non-admin. [#95303][#95303]
 - Remove `reset sql stats` from the **Transactions** page for non-admins. [#95461][#95461]
 - Added an insights type filter for the **Workload Insights** page, and added an execution status filter for the **Active Execution** pages. [#94002][#94002]

src/current/_includes/releases/v23.1/v23.1.9.md

@@ -38,10 +38,6 @@ Release Date: September 7, 2023
 - The [cluster setting](../v23.1/cluster-settings.html) `kv.allocator.lease_rebalance_threshold` can now be used to control the minimum fraction away from the mean a [store's](../v23.1/cockroach-start.html#store) lease count before it is considered for lease transfers. The default setting is 0.05. [#105950][#105950]
 - On Linux/ARM64, 16k page sizes are now used in jemalloc. This allows Linux/ARM64 users with 16k pages to run `cockroach`. [#107131][#107131]
 
-<h3 id="v23-1-9-cluster-virtualization-and-multi-tenancy">Cluster virtualization and multi-tenancy</h3>
-
-- This patch renames the subdirectory inside the output of [`cockroach debug zip`](../v23.2/cockroach-debug-zip.html) to be `cluster` when pointed to a cluster with virtualization enabled. This change provides consistency with the `cluster` parameter in [`cockroach sql`](../v23.1/cockroach-sql.html) and the `cluster` [HTTP API](../v23.1/cluster-api.html) parameter. [#106376][#106376]
-
 <h3 id="v23-1-9-db-console-changes">DB Console changes</h3>
 
 - The generic DB Console "unexpected error" message now includes details about the actual error, along with other context to make it easier to root cause. [#106404][#106404]