Revert "shared_ptr -> std::shared_ptr"

This reverts commit 7074f35e4b.

Minecraft.Client/MinecartModel.h

@@ -9,5 +9,5 @@ public:
 	ModelPart *cubes[MINECART_LENGTH];
 
     MinecartModel();
-    virtual void render(std::shared_ptr<Entity> entity, float time, float r, float bob, float yRot, float xRot, float scale, bool usecompiled);
+    virtual void render(shared_ptr<Entity> entity, float time, float r, float bob, float yRot, float xRot, float scale, bool usecompiled);
 };