config: remove two fields from local-config

Ilya suggests that local config doesn't usually want to be uncommenting
these, and we should remove these from the examples.

Author: mistydemeo

chart/examples/local-config.yaml

@@ -34,8 +34,6 @@
 # backend_pull_policy: "Never"
 # emails_pull_policy: "Never"
 # frontend_pull_policy: "Never"
-# crawler_pull_policy: "Never"
-# redis_pull_policy: "Never"
 
 # microk8s: if developing locally, can override these to use images from local microk8s repository (on localhost:32000)
 # backend_image: "localhost:32000/webrecorder/browsertrix-backend:latest"