build(replay): Cleanup unused config (#9140)

Noticed that these are not needed anymore!

Author: mydea

packages/replay/.eslintignore

@@ -1,6 +1,3 @@
 node_modules/
 build/
-demo/build/
-# TODO: Check if we can re-introduce linting in demo
-demo
-metrics
+

packages/replay/package.json

@@ -37,8 +37,6 @@
     "lint:prettier": "prettier --check \"{src,test,scripts}/**/*.ts\"",
     "test": "jest",
     "test:watch": "jest --watch",
-    "bootstrap:demo": "cd demo && yarn",
-    "start:demo": "yarn build:dev && cd demo && yarn start",
     "yalc:publish": "ts-node ../../scripts/prepack.ts --bundles && yalc publish ./build/npm --push"
   },
   "repository": {