Remove jest scripts

Author: Ives van Hoorne

packages/react-sandpack/package.json

@@ -25,8 +25,6 @@
     "start": "npm-run-all --parallel watch:**",
     "watch:rollup": "rollup -c rollup.config.ts -w",
     "watch:gulp": "gulp sass:watch",
-    "test": "jest",
-    "test:watch": "jest --watch",
     "test:prod": "npm run lint && npm run test -- --coverage --no-cache",
     "deploy-docs": "ts-node tools/gh-pages-publish",
     "report-coverage": "cat ./coverage/lcov.info | coveralls",