remove duplicate addHtml() method

Author: ziming

src/LaravelScrapingBeeWalmartSearch.php

@@ -168,13 +168,6 @@ public function storeId(string $storeId): self
         return $this;
     }
 
-    public function addHtml(): self
-    {
-        $this->params['add_html'] = true;
-
-        return $this;
-    }
-
     /**
      * https://www.scrapingbee.com/documentation/google/#extra_params
      */