default.nix: rm prettyprinter override

1.7.0 is default in Nixpkgs

Author: Anton-Latukha

default.nix

@@ -235,33 +235,6 @@ let
       # Upstream issue @ https://github.com/haskell-nix/hnix-store/issues/80
       hnix-store-remote = pkgs.haskell.lib.removeConfigureFlag super.hnix-store-remote "-fio-testsuite";
 
-      # 2020-08-04 hnix uses custom LayoutOptions and therefore is
-      # likely to be affected by the change in the ribbon width
-      # calculation in prettyprinter-1.7.0.
-      prettyprinter = haskellPackages.callPackage
-       ({ mkDerivation, ansi-wl-pprint, base, base-compat, bytestring
-        , containers, deepseq, doctest, gauge, mtl, pgp-wordlist
-        , QuickCheck, quickcheck-instances, random, tasty, tasty-hunit
-        , tasty-quickcheck, text, transformers, stdenv
-        }:
-        mkDerivation {
-          pname = "prettyprinter";
-          version = "1.7.0";
-          sha256 = "19z04sn0kqxgwcyfn5igjmbxw13xsb3mdhdidkb3kzswib78f6sr";
-          isLibrary = true;
-          isExecutable = true;
-          libraryHaskellDepends = [ base text ];
-          testHaskellDepends = [
-            base bytestring doctest pgp-wordlist QuickCheck
-            quickcheck-instances tasty tasty-hunit tasty-quickcheck text
-          ];
-          benchmarkHaskellDepends = [
-            ansi-wl-pprint base base-compat containers deepseq gauge mtl
-            QuickCheck random text transformers
-          ];
-          description = "A modern, easy to use, well-documented, extensible pretty-printer";
-          license = stdenv.lib.licenses.bsd2;
-        }) {};
     };
 
     modifier = drv: pkgs.haskell.lib.overrideCabal drv (attrs: {