Revert "Add new optional beta email parser thats based on ImapEngine instead of Webklex"

This reverts commit 9cb1ff7330.

plugins/vendor/directorytree/imapengine/src/FolderRepositoryInterface.php

@@ -1,33 +0,0 @@
-<?php
-
-namespace DirectoryTree\ImapEngine;
-
-use DirectoryTree\ImapEngine\Collections\FolderCollection;
-
-interface FolderRepositoryInterface
-{
-    /**
-     * Find a folder.
-     */
-    public function find(string $path): ?FolderInterface;
-
-    /**
-     * Find a folder or throw an exception.
-     */
-    public function findOrFail(string $path): FolderInterface;
-
-    /**
-     * Create a new folder.
-     */
-    public function create(string $path): FolderInterface;
-
-    /**
-     * Find or create a folder.
-     */
-    public function firstOrCreate(string $path): FolderInterface;
-
-    /**
-     * Get the mailboxes folders.
-     */
-    public function get(?string $match = '*', ?string $reference = ''): FolderCollection;
-}