CommonJs is default so no need to specify it to ts-node

Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>

package.json

@@ -17,8 +17,8 @@
     "test": "jest",
     "test:watch": "jest --watch",
     "lint": "eslint src --ext .ts",
-    "download-protos": "ts-node -O '{\"module\": \"CommonJS\"}' scripts/download-protos.ts",
-    "example": "ts-node -O '{\"module\": \"CommonJS\"}'"
+    "download-protos": "ts-node scripts/download-protos.ts",
+    "example": "ts-node"
   },
   "prettier": {
     "printWidth": 80,