E. S. Wishard lists "Adam-God" as one of the doctrines LDS missionaries do not teach converts; instead it is part of the deeper doctrines that are only taught some time after conversion.
E. S. Wishard, "Presbytery of Utah Speaks," The Herald and Presbyter 69, no. 37 (September 14, 1898): 6
"Seventh—One thing more. These missionaries carry a veiled gospel. They do not say all they have to say in the first sermon nor in any field sermon. They do not even give the people 'meat,' much less 'strong meat.' They feed 'milk.' It is safer, better adapted to weak and sensitive stomachs. Faith, repentance, baptism by immersion for the forgiveness of sins by one having authority, and imposition of hands, are the stock doctrines commanded by Joseph Smith and his successors to be taught to the world; while the Adam-God doctrine, immediate revelation, infallibility of the priesthood, divinity of the Book of Mormon, celestial order of marriage, God as a polygamist, Christ the husband of three wives, salvation on the ground of merit, redemption for the dead by vicarious baptism, the duty of tithes, implicit obedience to the priesthood in all things, personal or blood atonement for the pardon of the unpardonable sin, and such like doctrines, they reserve until the digestion of the new convert is improved and he can take the strong meat of Mormonism. To ordinary mortals a less brief statement of 'the present situation in Utah' is inadequate."