[Docs] [Maps] Remove reference to Kibana Server in EMS Server doc (#4415)

## Summary

Kibana Server is not making connections to EMS (cloud or self-hosted)
[since 8.0](elastic/kibana#116184), hence the
docs are misleading and this small fix.

## Generative AI disclosure

1. Did you use a generative AI (GenAI) tool to assist in creating this
contribution?
- [ ] Yes  
- [x] No  


cc @elastic/ems

---------

Co-authored-by: Benjamin Ironside Goldstein <[email protected]>

Author: jsanz

explore-analyze/visualize/maps/maps-connect-to-ems.md

@@ -465,7 +465,7 @@ X-Firefox-Spdy: h2
 
 ## Disable Elastic Maps Service [disable-ems]
 
-You might experience EMS connection issues if your Kibana server or browser are on a private network or behind a firewall. If this happens, you can disable the EMS connection to avoid unnecessary EMS requests.
+You might experience EMS connection issues if your {{kib}} browser is on a private network or behind a firewall. If this happens, you can disable the EMS connection to avoid unnecessary EMS requests.
 
 To disable EMS, change your [kibana.yml](kibana://reference/configuration-reference/general-settings.md) file.