refactor: remove unused packages

Author: jlp-craigmorten

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@guidepup/virtual-screen-reader",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "description": "Virtual screen reader driver for unit test automation.",
   "main": "lib/index.js",
   "author": "Craig Morten <craig.morten@hotmail.co.uk>",
@@ -40,7 +40,6 @@
     "jest": "^29.4.0",
     "jest-environment-jsdom": "^29.5.0",
     "rimraf": "^4.1.2",
-    "tree-util": "^1.0.7",
     "ts-jest": "^29.0.5",
     "ts-node": "^10.9.1",
     "typescript": "^4.9.4"
@@ -50,7 +49,6 @@
     "@testing-library/dom": "^9.3.0",
     "@testing-library/user-event": "^14.4.3",
     "aria-query": "^5.1.3",
-    "dom-accessibility-api": "^0.6.0",
-    "tree-model": "^1.0.7"
+    "dom-accessibility-api": "^0.6.0"
   }
 }