Browser+WebContent+WebDriver: Move Delete Cookie to WebContent

Author: https://github.com/trflynn89
Commit: b7f21bb92e
Pull-request: https://github.com/SerenityOS/serenity/pull/16031
Reviewed-by: https://github.com/linusg

Userland/Services/WebDriver/Session.h

@@ -58,7 +58,6 @@ public:
     Web::WebDriver::Response get_window_handle();
     ErrorOr<void, Variant<Web::WebDriver::Error, Error>> close_window();
     Web::WebDriver::Response get_window_handles() const;
-    Web::WebDriver::Response delete_cookie(StringView name);
     Web::WebDriver::Response delete_all_cookies();
     Web::WebDriver::Response take_element_screenshot(StringView element_id);