remove mock-data scripts

plugins/scaffolder-backend/scripts/mock-data.sh

@@ -1,22 +0,0 @@
-#!/usr/bin/env bash
-
-for URL in \
-  'react-ssr-template' \
-  'springboot-grpc-template' \
-  'create-react-app' \
-  'docs-template' \
-; do \
-  curl \
-    --location \
-    --request POST 'localhost:7000/catalog/locations' \
-    --header 'Content-Type: application/json' \
-    --data-raw "{\"type\": \"file\", \"target\": \"$(pwd)/sample-templates/${URL}/template.yaml\"}"
-  echo
-done
-
-curl \
-    --location \
-    --request POST 'localhost:7000/catalog/locations' \
-    --header 'Content-Type: application/json' \
-    --data-raw "{\"type\": \"github\", \"target\": \"https://github.com/spotify/cookiecutter-golang/blob/master/template.yaml\"}"
-echo