beam-modules/hex-snapshot: remove

The package set is not maintained. It is also not used by most of the
BEAM community. Removing it to allow a more useful set of tools fit to
the BEAM community in Nixpkgs.

pkgs/development/beam-modules/build-mix.nix

@@ -1,4 +1,4 @@
-{ stdenv, writeText, elixir, erlang, hexRegistrySnapshot, hex, lib }:
+{ stdenv, writeText, elixir, erlang, hex, lib }:
 
 { name
 , version
@@ -43,7 +43,7 @@ let
     else setupHook;
 
     inherit buildInputs;
-    propagatedBuildInputs = [ hexRegistrySnapshot hex elixir ] ++ beamDeps;
+    propagatedBuildInputs = [ hex elixir ] ++ beamDeps;
 
     configurePhase = if configurePhase == null
     then ''

pkgs/development/beam-modules/default.nix

@@ -14,16 +14,11 @@ let
       defaultScope = mkScope self;
       callPackage = drv: args: callPackageWithScope defaultScope drv args;
     in
-      import ./hex-packages.nix {
-        inherit pkgs stdenv callPackage;
-      } // rec {
+      rec {
         inherit callPackage erlang;
         beamPackages = self;
 
-        hexRegistrySnapshot = callPackage ./hex-registry-snapshot.nix { };
-
         rebar = callPackage ../tools/build-managers/rebar { };
-        rebar3-open = callPackage ../tools/build-managers/rebar3 { };
         rebar3 = callPackage ../tools/build-managers/rebar3 { };
 
         # rebar3 port compiler plugin is required by buildRebar3
@@ -80,9 +75,6 @@ let
         webdriver = callPackage ./webdriver {};
         relxExe = callPackage ../tools/erlang/relx-exe {};
 
-        # The tool used to upgrade hex-packages.nix.
-        hex2nix = callPackage ../tools/erlang/hex2nix {};
-
         # An example of Erlang/C++ package.
         cuter = callPackage ../tools/erlang/cuter {};
       };

pkgs/development/beam-modules/hex-registry-snapshot.nix

@@ -1,27 +0,0 @@
-{stdenv, writeText, fetchFromGitHub }:
-
-stdenv.mkDerivation rec {
-    pname = "hex-registry";
-    rev = "11d7a24e9f53f52490ce255a6248e71128e73aa1";
-    version = "unstable-2018-07-12";
-
-    src = fetchFromGitHub {
-        inherit rev;
-        owner  = "erlang-nix";
-        repo   = "hex-pm-registry-snapshots";
-        sha256 = "0dbpcrdh6jqmvnm1ysmy7ixyc95vnbqmikyx5kk77qwgyd43fqgi";
-    };
-
-    installPhase = ''
-       mkdir -p "$out/var/hex"
-       zcat "registry.ets.gz" > "$out/var/hex/registry.ets"
-    '';
-
-    setupHook = writeText "setupHook.sh" ''
-        export HEX_REGISTRY_SNAPSHOT="$1/var/hex/registry.ets"
-   '';
-
-    meta = {
-        platforms = stdenv.lib.platforms.unix;
-    };
-}

pkgs/development/beam-modules/mix-bootstrap

@@ -25,8 +25,7 @@
 -record(data, {version
               , erl_libs
               , root
-              , name
-              , registry_snapshot}).
+              , name}).
 -define(LOCAL_HEX_REGISTRY, "registry.ets").
 
 main(Args) ->
@@ -51,8 +50,7 @@ gather_required_data_from_the_environment(_) ->
     {ok, #data{ version = guard_env("version")
               , erl_libs = os:getenv("ERL_LIBS", [])
               , root = code:root_dir()
-              , name = guard_env("name")
-              , registry_snapshot = guard_env("HEX_REGISTRY_SNAPSHOT")}}.
+              , name = guard_env("name")}}.
 
 -spec guard_env(string()) -> string().
 guard_env(Name) ->