Remove unneeded packageManager from package.json (opendatahub-io#111)

Author: caponetto

package.json

@@ -83,6 +83,5 @@
     "typedoc-plugin-mdn-links": "^3.0.3",
     "typescript": "~5.1.6",
     "webpack": "^5.76.1"
-  },
-  "packageManager": "[email protected]"
+  }
 }