Remove test/lkj.jl

Author: penelopeysm

test/lkj.jl

@@ -67,7 +67,6 @@ include("test_util.jl")
         include("linking.jl")
         include("serialization.jl")
         include("pointwise_logdensities.jl")
-        include("lkj.jl")
         include("contexts.jl")
         include("context_implementations.jl")
         include("threadsafe.jl")