Remove RL9 custom instructions from Wazuh docs

Author: MoteHue

doc/source/configuration/wazuh.rst

@@ -336,11 +336,6 @@ rulesets. However, you may find you want to add more. This can be achieved via
 SKC supports this automatically, just add the policy file from this PR to
 ``{{ kayobe_env_config_path }}/wazuh/custom_sca_policies``.
 
-Currently, Wazuh does not ship with a CIS benchmark for Rocky 9. You can find
-the in-development policy here: https://github.com/wazuh/wazuh/pull/17810 To
-include this in your deployment, simply copy it to
-``{{ kayobe_env_config_path }}/wazuh/custom_sca_policies/cis_rocky_linux_9.yml``.
-
 .. _Deploy:
 
 Deploy