Remove comments explainin cron

One of them were wrong :D

Author: mads-hartmann

.werft/ide-integration-tests-startup.yaml

@@ -92,5 +92,4 @@ pod:
       fi
       echo "integration test success" | werft log slice "test"
 plugins:
-  # At 00:30 every day
   cron: "0 3 * * *"

.werft/platform-delete-preview-environments-cron.yaml

@@ -51,5 +51,4 @@ pod:
 
         npx ts-node .werft/delete-preview-environments/delete-preview-environments-cron.ts
 plugins:
-  # Every hour at 15 minutes past. E.g. 10:15, 11:15, etc.
   cron: "15 * * * *"