Toon shader light culling shadow issue

Hey i have a question that bothers me since a month now and prevents my shader to be finished. I want to have my toon shader culling light intensity and color for "not important" lighting but dont want to have that normal style looking shadow on top of it. the pictures are summing it up pretty good what i have atm and what i want to accomplish. I guess i need the Indirect Diffuse light Node but i dont know how to work with it and since my shader is created in the "Amplify Shader Editor" no one i know knows how to help me either. i would love to get this done so if anyone can help me please tell me :)

what i have atm:

Light set to not Important (this needs fix)

Light set to not Important from another shader i used before i made my own and i want to have it like this