clean up PR following review

Signed-off-by: aramissennyeydd <aramis.sennyey@doordash.com>

packages/backend/app-config.split.yaml

@@ -1,11 +0,0 @@
-discovery:
-  endpoints:
-    - target: http://localhost:7007/api/{{pluginId}}
-      plugins: [proxy]
-    - target: http://localhost:7008/api/{{pluginId}}
-      plugins: [catalog]
-  instances:
-    - baseUrl: http://localhost:7007
-    - baseUrl:
-        internal: http://localhost:7008
-        external: http://127.0.0.1:7008

packages/backend/package.json

@@ -27,7 +27,6 @@
     "lint": "backstage-cli package lint",
     "start": "backstage-cli package start --require ./src/instrumentation.js",
     "start:prometheus": "docker run --mount type=bind,source=./prometheus.yml,destination=/etc/prometheus/prometheus.yml --publish published=9090,target=9090,protocol=tcp prom/prometheus",
-    "start:split": "backstage-cli package start --require ./src/instrumentation.js --config ../../app-config.yaml --config app-config.split.yaml",
     "test": "backstage-cli package test"
   },
   "dependencies": {