How to make standard shader act like diffuse shader?

In 4.6 I used simple diffuse shader, now in Unity 5 that shader is Legacy and in documentation it’s said to avoid using Legacy shaders and use standard one whenever it’s possible. But with standard shader my material has glossiness and reflections. So how should I make standard shader to act like an old diffuse shader ?

Use Standard (Specular Setup) with black specular and zero smoothness…

I’m using the standard shader with metallic and smoothness at 0 and there are no reflections.
Also, make sure that in your mesh renderer you have “Off” selected at reflection probes.