chore: remove superfluous dev dependency

Author: marionebl

Diff for: @commitlint/prompt/package.json

@@ -66,7 +66,6 @@
     "commitizen": "2.9.6",
     "concurrently": "3.5.1",
     "cross-env": "5.1.1",
-    "throat": "4.1.0",
     "xo": "0.18.2"
   },
   "dependencies": {