Remove unused fast-xml-parser

The use of this dependency was
removed in commit 7d1c5c5.

Author: pjonsson

package-lock.json

@@ -26,7 +26,6 @@
   },
   "license": "MIT",
   "dependencies": {
-    "fast-xml-parser": "^4.3.6",
     "@xmldom/xmldom": "^0.8.10"
   },
   "devDependencies": {