Arizona law bars the sale of “diet weed” products like delta-8 THC in smoke shops and convenience stores, Attorney General Kris Mayes said. But proponents of the hemp industry say the effect of a formal legal opinion that Mayes issued Monday goes far beyond the hemp-based intoxicants and will likely also sweep up the entirety of the CBD marketplace in Arizona, barring sales of products used to improve sleep and reduce body aches and pains…