remove mock-data scripts

docs/features/software-templates/adding-templates.md

@@ -105,13 +105,6 @@ curl \
 This should then have added the catalog, and also should now be listed under the
 create page at http://localhost:3000/create.
 
-Alternatively, if you want to get setup with some mock templates that are
-already provided, run the following to load those templates:
-
-```
-yarn lerna run mock-data
-```
-
 The `type` field which is chosen in the request to add the `template.yaml` to
 the Service Catalog here, will be come the `PreparerKey` which will be used to
 select the `Preparer` when creating a job.

docs/getting-started/running-backstage-locally.md

@@ -48,12 +48,10 @@ yarn start
 
 That starts up a backend instance on port 7000.
 
-In the other window, we will first populate the catalog with some nice mock data
-to look at, and then launch the frontend. These commands are run from the
-project root, not inside the backend directory.
+In the other window, we will then launch the frontend. This command is run from
+the project root, not inside the backend directory.
 
 ```bash
-yarn lerna run mock-data
 yarn start
 ```