refactor: remove unused HTML content server constructor from HttpServer

- Deleted the constructor that served a single HTML content, as it was no longer needed.
- Updated the header file to reflect the removal of the constructor.

Signed-off-by: Y.Hisaki <yhisaki31@gmail.com>

Author: yhisaki

src/detail/http_server.cpp

@@ -26,15 +26,6 @@ HttpServer::HttpServer(const std::filesystem::path &directory) : _server() {
   setupCommon();
 }
 
-HttpServer::HttpServer(const std::string_view htmlContent) : _server() {
-  _server.Get(
-      "/",
-      [htmlContent](const httplib::Request &, httplib::Response &res) -> void {
-        res.set_content(std::string(htmlContent), "text/html");
-      });
-  setupCommon();
-}
-
 HttpServer::~HttpServer() { stop(); }
 
 void HttpServer::start() {

src/detail/http_server.hpp

@@ -41,12 +41,6 @@ class HttpServer {
    */
   explicit HttpServer(const std::filesystem::path &directory);
 
-  /**
-   * @brief Construct a server serving a single HTML content
-   * @param htmlContent The HTML content to serve
-   */
-  explicit HttpServer(std::string_view htmlContent);
-
   /**
    * @brief Destructor
    */