[DOCS] Remove soft limit for snapshot repositories (#80745) (#80772)

As part of #74350, snapshot repositories no longer have a 200 snapshot soft limit. This removes docs related to the limit.
# Conflicts:
#	docs/reference/slm/apis/slm-put.asciidoc
#	docs/reference/snapshot-restore/take-snapshot.asciidoc

Author: jrodewig

docs/reference/slm/apis/slm-put.asciidoc

@@ -77,6 +77,12 @@ exist prior to the policy's creation. You can create a repository using the
 (Optional, object)
 Retention rules used to retain and delete snapshots created by the policy.
 +
+We recommend you include retention rules in your {slm-init} policy to delete
+snapshots you no longer need. A snapshot repository can safely scale to
+thousands of snapshots. However, to manage its metadata, a large repository
+requires more memory on the master node. Retention rules ensure a repository's
+metadata doesn't grow to a size that could destabilize the master node.
++
 .Properties of `retention`
 [%collapsible%open]
 ====
@@ -91,10 +97,6 @@ deletion. {slm-init} deletes expired snapshots based on the
 Maximum number of snapshots to retain, even if the snapshots have not yet
 expired. If the number of snapshots in the repository exceeds this limit, the 
 policy retains the most recent snapshots and deletes older snapshots.
-+
-NOTE: The maximum number of snapshots in a repository should not exceed `200`. This ensures that the snapshot repository metadata does not
-grow to a size which might destabilize the master node. If the `max_count` setting is not set, this limit should be enforced by configuring
-other retention rules such that the repository size does not exceed `200` snapshots.
 
 `min_count`::
 (Optional, integer)