removed some unneeded includes

src/collision.c

@@ -1,5 +1,4 @@
 #include "collision.h"
-#include "debug.h"
 #include "vmath.h"
 #include "rigidbody.h"
 

src/physics_entity.c

@@ -4,7 +4,6 @@
 #include "shape.h"
 #include "render.h"
 #include "debug.h"
-#include "program.h"
 
 void physics_entity_debug_draw(PhysicsEntity self) {
     RigidBody* body = self.tc->get_rigidbody(self.data);

src/program.c

@@ -2,12 +2,10 @@
 #include "camera.h"
 #include "game_world.h"
 #include "physics_world.h"
-#include "sprite.h"
 #include "time.h"
 #include "assets.h"
 #include "debug.h"
 #include "input.h"
-#include <assert.h>
 #include <SDL2/SDL_video.h>
 #include <SDL2/SDL_image.h>