diff --git a/appinfo/info.xml b/appinfo/info.xml
index 2e490ba6a..4a5d51ed3 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -80,11 +80,4 @@
             <plugin>OCA\Deck\DAV\CalendarPlugin</plugin>
         </calendar-plugins>
     </sabre>
-
-    <collaboration>
-        <plugins>
-            <plugin type="collaborator-search" share-type="SHARE_TYPE_DECK">OCA\Deck\Sharing\DeckPlugin</plugin>
-        </plugins>
-    </collaboration>
-
 </info>
diff --git a/lib/Sharing/DeckPlugin.php b/lib/Sharing/DeckPlugin.php
deleted file mode 100644
index 6e0071143..000000000
--- a/lib/Sharing/DeckPlugin.php
+++ /dev/null
@@ -1,84 +0,0 @@
-<?php
-/*
- * @copyright Copyright (c) 2020 Julius Härtl <jus@bitgrid.net>
- *
- * @author Julius Härtl <jus@bitgrid.net>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-declare(strict_types=1);
-
-
-namespace OCA\Deck\Sharing;
-
-
-use OCA\Deck\Db\Acl;
-use OCA\Deck\Db\Card;
-use OCA\Deck\NoPermissionException;
-use OCA\Deck\Service\BoardService;
-use OCA\Deck\Service\CardService;
-use OCA\Deck\Service\PermissionService;
-use OCP\Collaboration\Collaborators\ISearchPlugin;
-use OCP\Collaboration\Collaborators\ISearchResult;
-use OCP\Collaboration\Collaborators\SearchResultType;
-use OCP\Share\IShare;
-
-class DeckPlugin implements ISearchPlugin {
-
-	/**
-	 * @var BoardService
-	 */
-	private $boardService;
-	/**
-	 * @var CardService
-	 */
-	private $cardService;
-
-	public function __construct(BoardService $boardService, CardService $cardService) {
-		$this->boardService = $boardService;
-		$this->cardService = $cardService;
-	}
-
-	public function search($search, $limit, $offset, ISearchResult $searchResult) {
-		$result = ['wide' => [], 'exact' => []];
-
-		$cards = $this->cardService->searchRaw($search, $limit, $offset);
-		/** @var PermissionService $permissionsService */
-		$permissionsService = \OC::$server->get(PermissionService::class);
-		foreach ($cards as $card) {
-			try {
-				$permissionsService->checkPermission(null, $card['board_id'], Acl::PERMISSION_EDIT);
-			} catch (NoPermissionException $e) {
-				continue;
-			}
-			$board = $this->boardService->find($card['board_id']);
-
-			$result['wide'][] = [
-				'label' => $card['title'],
-				'value' => [
-					'shareType' => IShare::TYPE_DECK,
-					'shareWith' => (string)$card['id']
-				],
-				'shareWithDescription' => $board->getTitle() . ' – ' . $card['stack_title'],
-			];
-		}
-		$type = new SearchResultType('deck');
-		$searchResult->addResultSet($type, $result['wide'], $result['exact']);
-		return false;
-	}
-}