chore: Removed cz-conventional-changelog (#647)

Author: JohnstonCode

package-lock.json

@@ -65,7 +65,6 @@
     "@types/vscode": "^1.26.0",
     "@types/xml2js": "^0.4.4",
     "codecov": "^3.4.0",
-    "cz-conventional-changelog": "^2.1.0",
     "decache": "^4.5.1",
     "glob": "^7.1.4",
     "istanbul": "^0.4.5",