Update to LTS-18.28

Remove the Stripe "extra-deps" because they're satisfied from the LTS package
set now (I think).

Author: exarkun

nix/materialized.paymentserver/PaymentServer.nix

@@ -142,6 +142,4 @@
           };
         };
       };
-    } // rec {
-    src = (pkgs.lib).mkDefault ./.;
-    }
+    } // rec { src = (pkgs.lib).mkDefault ./.; }

nix/materialized.paymentserver/default.nix

@@ -2,14 +2,11 @@
   extras = hackage:
     {
       packages = {
-        "stripe-core" = (((hackage.stripe-core)."2.5.0").revisions).default;
-        "stripe-haskell" = (((hackage.stripe-haskell)."2.5.0").revisions).default;
-        "stripe-http-client" = (((hackage.stripe-http-client)."2.5.0").revisions).default;
         PaymentServer = ./PaymentServer.nix;
         servant-prometheus = ./.stack-to-nix.cache.0;
         };
       };
-  resolver = "lts-14.2";
+  resolver = "lts-18.28";
   modules = [
     ({ lib, ... }:
       { packages = {}; })

stack.yaml

@@ -17,7 +17,7 @@
 #
 # resolver: ./custom-snapshot.yaml
 # resolver: https://example.com/snapshots/2018-01-01.yaml
-resolver: lts-14.2
+resolver: lts-18.28
 
 # User packages to be built.
 # Various formats can be used as shown in the example below.
@@ -38,9 +38,6 @@ packages:
 # using the same syntax as the packages field.
 # (e.g., acme-missiles-0.3)
 extra-deps:
-  - "stripe-core-2.5.0"
-  - "stripe-haskell-2.5.0"
-  - "stripe-http-client-2.5.0"
   - github: "PrivateStorageio/servant-prometheus"
     commit: "b9461cbf689b47506b2eee973136706092b74968"
     # https://input-output-hk.github.io/haskell.nix/tutorials/source-repository-hashes/#stack