Fix issue #8 by removing useless header files

src/render/vbo.cpp

@@ -46,14 +46,10 @@
 #include <GL/glew.h>
 #include <stdlib.h>
 #include <iostream>
-#define GLM_FORCE_RADIANS
 #include <glm/glm.hpp>
-#include <glm/gtx/transform.hpp>
-#include <glm/gtc/type_ptr.hpp>
 #include "vbo.hpp"
 #include "Shader.hpp"
 
-
 #define ERROR(m) printf("%s", m);
 
 using namespace std;