fix: clean up broken-syntax fixture to match other fixtures

- Remove unnecessary dependencies from package.json
- Remove package-lock.json
- The npm link is handled by run.sh script

Author: taeold

scripts/bin-test/sources/broken-syntax/package-lock.json

@@ -1,7 +1,3 @@
 {
-  "name": "broken-syntax",
-  "main": "index.js",
-  "dependencies": {
-    "firebase-functions": "file:../../../.."
-  }
+  "name": "broken-syntax"
 }