Fix some phantom dependencies

Author: octogonz

eslint-plugin/package.json

@@ -15,8 +15,10 @@
   "devDependencies": {
     "@rushstack/eslint-config": "0.4.0",
     "@types/eslint": "6.1.3",
+    "@types/estree": "0.0.39",
     "@types/node": "10.7.1",
     "eslint": "^6.0.0",
+    "rimraf": "~2.6.3",
     "typescript": "~3.5.3"
   }
 }