That's what I am doing. I rendered with no textures. I am assuming that means turn items off, cause that makes sense. I am not going to remove textures from the file. I basically rendered nothing and now seeing if it speeds up rendering with same results. Because before it was also taking longer. Have to pay attention to the irradiance map options tho remember what to check and uncheck and doing the map the way the manual said.

No need to think outside the box....
    Just make it invisible.