chore: remove callout on batch changes page as it points to itself (#1570)

The callout link pretty much directed you to the same page, so it is
pretty useless.

Author: burmudar

docs/batch-changes/server-side.mdx

@@ -25,11 +25,6 @@ This is a one-time process. Once a site-admin of the Sourcegraph instance sets u
 
 Make sure that [executors are deployed and are online](/self-hosted/executors/deploy-executors).
 
-<Callout type="tip">
-	It's recommended to read [Getting started with running batch changes
-	server-side](/batch-changes/server-side) for better understanding.
-</Callout>
-
 ## Limitations
 
 -   Running batch changes server-side requires setting up executors. Executors are configured ready-to-use on Sourcegraph Cloud