remove duplicate depcheck entry

Author: nirinchev

package.json

@@ -107,7 +107,6 @@
     "@types/which": "^1.3.2",
     "chai": "^4.2.0",
     "cross-env": "^6.0.3",
-    "depcheck": "^1.4.7",
     "duplexpair": "^1.0.2",
     "find-up": "^5.0.0",
     "glob": "^10.3.12",