Remove since for @doc false
Remove since for @doc false

joshprice/elixir,ggcampinho/elixir,ggcampinho/elixir,pedrosnk/elixir,elixir-lang/elixir,michalmuskala/elixir,kelvinst/elixir,kimshrier/elixir,kimshrier/elixir,kelvinst/elixir,lexmag/elixir,lexmag/elixir,pedrosnk/elixir