rm old hook

IanButterworth · IanButterworth · commit 095d61f3bbbd · 2025-07-30T11:45:23.000-04:00
diff --git a/base/loading.jl b/base/loading.jl
@@ -2576,8 +2576,6 @@ function set_pkgorigin_version_path(pkg::PkgId, path::String)
     nothing
 end
 
-# Unused
-const PKG_PRECOMPILE_HOOK = Ref{Function}()
 disable_parallel_precompile::Bool = false
 
 # Returns `nothing` or the new(ish) module
