fix broken links

Author: gabtorre

docs/admin/executors/deploy_executors_kubernetes.mdx

@@ -62,7 +62,7 @@ Native Kubernetes Executors can be deployed via either the `sourcegraph-executor
 
 ### Steps
 
-1. If you are deploying Executors for processing Batch Changes, set the `native-ssbc-execution` [feature flag](/admin/executors/native_execution#enable)
+1. If you are deploying Executors for processing Batch Changes, enable the `native-ssbc-execution` feature flag in **Site admin > Feature flags** by creating a Boolean feature flag with the value set to `true`
 2. Configure the following environment variables on the Executor Deployment:
     1. `EXECUTOR_FRONTEND_URL` should match the URL of your Sourcegraph instance
     2. `EXECUTOR_FRONTEND_PASSWORD` should match the `executors.accessToken` key in the Sourcegraph instance's site configuration
@@ -123,11 +123,6 @@ Environment.
 - Disable access to internal resources.
 - Disable access to `169.254.169.254` (AWS / GCP Instance Metadata Service).
 
-### Batch Changes
-
-To run [Batch Changes](/batch-changes/) on
-Kubernetes, [native Server-Side Batch Changes](/admin/executors/native_execution) must be enabled.
-
 ### Docker Image
 
 The Executor Docker image is available on Docker Hub at [`sourcegraph/executor-kubernetes`](https://hub.docker.com/r/sourcegraph/executor-kubernetes/tags).