remove Core for now

src/Flux.jl

@@ -16,9 +16,6 @@ export @net, unroll, unroll1, @shapes,
 
 # Zero Flux Given
 
-include("core.jl")
-import .FluxCore: graph
-
 include("Tracker/Tracker.jl")
 using .Tracker
 

src/compiler/code.jl

@@ -1,6 +1,8 @@
 import DataFlow: cse
 using MacroTools: @q, @>
 
+graph(m) = nothing
+
 function graphdef(ex, params = [])
   @capture(shortdef(ex), (args__,) -> body_)
   body = @> body MacroTools.flatten liftloops graphm DataFlow.il

src/core.jl

@@ -1,14 +0,0 @@
-# This code is in a submodule with the intention that it will be split into an
-# interface package.
-
-module FluxCore
-
-"""
-    graph(model) => ::IVertex{Any} | nothing
-
-Returns the graph representation of the model, if any. May be used for
-compilation, generating symbolic gradients, etc.
-"""
-graph(m) = nothing
-
-end