remove unused code

pipeline/includes/web_client/web_client.h

@@ -16,15 +16,6 @@ class WebClient {
    /// @brief Virtual destructor for polymorphic cleanup.
    virtual ~WebClient() = default;
 
-   /**
-    * @brief Downloads content from a URL into a file.
-    *
-    * @param url Source URL.
-    * @param file_path Destination file path.
-    */
-   virtual void DownloadToFile(const std::string& url,
-                               const std::string& file_path) = 0;
-
    /**
     * @brief Executes an HTTP GET request.
     *