remove workers and ingest flags

Author: hubertdeng123

develop-docs/development-infrastructure/environment/index.mdx

@@ -131,10 +131,10 @@ The devserver command supports `--silo` option that lets you create siloed insta
 
 ```shell
 # Start control silo servers
-devservices serve --silo=control --celery-beat --workers
+devservices serve --silo=control --celery-beat
 
 # Start region silo servers
-devservices serve --silo=region --celery-beat --workers --ingest
+devservices serve --silo=region --celery-beat
 ```
 
 Siloed servers have the following port assignments: