Remove unnecessary new method

package.json

@@ -1,6 +1,6 @@
 {
     "name": "fwdekker.com",
-    "version": "0.38.2",
+    "version": "0.38.3",
     "description": "The source code of [my personal website](https://fwdekker.com/).",
     "author": "Felix W. Dekker",
     "browser": "dist/bundle.js",

src/main/js/FileSystem.ts

@@ -90,7 +90,9 @@ export class FileSystem {
                 "password.txt": new File("root: g9PjKu"),
             }),
         });
-        (this.get(new Path("home", "felix")) as Directory).addAll(FileSystem.navRoot);
+
+        const home = this.get(new Path("home", "felix")) as Directory;
+        Object.keys(FileSystem.navRoot.nodes).forEach(name => home.add(name, FileSystem.navRoot.get(name)!));
     }
 
 
@@ -577,15 +579,6 @@ export class Directory extends Node {
         this._nodes[name] = node;
     }
 
-    /**
-     * Adds (references to) all files in the given directory to this directory.
-     *
-     * @param directory the directory of which to add the children to this directory
-     */
-    addAll(directory: Directory): void {
-        Object.keys(directory.nodes).forEach(name => this.add(name, directory.get(name)!));
-    }
-
     /**
      * Removes the node with the given name.
      *