Removed unnecessary cstddef includes

client_http.hpp

@@ -2,12 +2,11 @@
 #define CLIENT_HTTP_HPP
 
 #include "utility.hpp"
+#include <limits>
 #include <mutex>
 #include <random>
 #include <unordered_set>
 #include <vector>
-#include <limits>
-#include <cstddef>
 
 #ifdef USE_STANDALONE_ASIO
 #include <asio.hpp>

client_https.hpp

@@ -2,7 +2,6 @@
 #define CLIENT_HTTPS_HPP
 
 #include "client_http.hpp"
-#include <cstddef>
 
 #ifdef USE_STANDALONE_ASIO
 #include <asio/ssl.hpp>

server_http.hpp

@@ -4,13 +4,12 @@
 #include "utility.hpp"
 #include <functional>
 #include <iostream>
+#include <limits>
 #include <map>
 #include <mutex>
 #include <sstream>
 #include <thread>
 #include <unordered_set>
-#include <limits>
-#include <cstddef>
 
 #ifdef USE_STANDALONE_ASIO
 #include <asio.hpp>

server_https.hpp

@@ -10,7 +10,6 @@
 #endif
 
 #include <algorithm>
-#include <cstddef>
 #include <openssl/ssl.h>
 
 namespace SimpleWeb {

utility.hpp

@@ -7,7 +7,6 @@
 #include <memory>
 #include <string>
 #include <unordered_map>
-#include <cstddef>
 
 namespace SimpleWeb {
   inline bool case_insensitive_equal(const std::string &str1, const std::string &str2) noexcept {