Removed unnecessary standard libraries

src/gamestate.cpp

@@ -1,8 +1,5 @@
 // GameState.cpp
-#include <iostream>
-#include <memory>
 #include <stdexcept>
-#include <string>
 #include <SFML/Graphics.hpp>
 #include "common.hpp"
 #include "playerinterface.hpp"

src/gamestate.hpp

@@ -2,7 +2,6 @@
 #ifndef GAMESTATE_HPP
 #define GAMESTATE_HPP
 
-#include <memory>
 #include <SFML/Graphics.hpp>
 #include "snake.hpp"
 #include "playerinterface.hpp"

src/playerinterface.cpp

@@ -1,7 +1,5 @@
 #include "playerinterface.hpp"
 #include <SFML/System/Vector2.hpp>
-#include <cstdlib>
-#include <iostream>
 
 namespace snakeplusplus 
 {

src/snake.cpp

@@ -1,6 +1,4 @@
 // Snake.cpp
-#include <algorithm>
-#include <memory>
 #include <queue>
 #include <random>
 #include <SFML/Graphics.hpp>

src/snake.hpp

@@ -3,10 +3,8 @@
 #define SNAKE_HPP
 
 #include <SFML/System/Vector2.hpp>
-#include <memory>
 #include <queue>
 #include <random>
-#include <SFML/Graphics.hpp>
 
 namespace snakeplusplus
 {