Remove dead code

Author: penelopeysm

docs/src/api.md

@@ -519,8 +519,8 @@ InitFromParams
 If you wish to write your own, you have to subtype [`DynamicPPL.AbstractInitStrategy`](@ref) and implement the `init` method.
 
 ```@docs
-DynamicPPL.AbstractInitStrategy
-DynamicPPL.init
+AbstractInitStrategy
+init
 ```
 
 ### Choosing a suitable VarInfo

src/contexts/init.jl

@@ -9,15 +9,6 @@ Any subtype of `AbstractInitStrategy` must implement the
 """
 abstract type AbstractInitStrategy end
 
-"""
-    InitValue{T,F}
-
-"""
-struct InitValue{T,F}
-    value::T
-    transform::F
-end
-
 """
     init(rng::Random.AbstractRNG, vn::VarName, dist::Distribution, strategy::AbstractInitStrategy)