What does 2 Kings 23:24 mean?

Josiah got rid of the mediums, spiritists, household gods, idols, and all the disgusting things in Judah and Jerusalem. He did this to keep the words of the law written in the book Hilkiah the priest found in the Lord’s temple. 2 Kings 23:24 - Modern Text Bible

(Josiah’s reforms are total—he removes every kind of occult practice and idol, determined to follow everything written in God’s law.)