Remove deprecations.

src/Plugin.php

@@ -0,0 +1,10 @@
+<?php
+namespace Tools;
+
+use Cake\Core\BasePlugin;
+
+/**
+ * Plugin for Tools
+ */
+class Plugin extends BasePlugin {
+}

src/View/Helper/HtmlHelper.php

@@ -95,7 +95,7 @@ class HtmlHelper extends CoreHtmlHelper {
 			if (!isset($url['?'])) {
 				$url['?'] = [];
 			}
-			$url['?'] += $this->request->getQuery();
+			$url['?'] += $this->_View->getRequest()->getQuery();
 		}
 		return parent::link($title, $url, $options);
 	}

src/View/Helper/UrlHelper.php

@@ -99,7 +99,7 @@ class UrlHelper extends CoreUrlHelper {
 		if (!isset($url['?'])) {
 			$url['?'] = [];
 		}
-		$url['?'] += $this->request->getQuery();
+		$url['?'] += $this->_View->getRequest()->getQuery();
 
 		return $url;
 	}