Cant remove shadows from object

I have 3D object i my scene, lit by one directional light from one side. I want to disable shadow on the opposite side. Model consists of smaller grouped parts and I disbled Cast and Receive Shadows in all of them. But the shadow remains. Only way to get rid of them is to add another light from the other side of a model, but I dont want to do that (because of the other objects which casts the shadows).

Well, I tried to figure out this problem almost a week before posting here and now, few minutes after doing that I found the solution…
I needed to set my shader to Unlit/texture.