treewide: remove stdenv where not needed

pkgs/development/tools/haskell/dconf2nix/dconf2nix.nix

@@ -1,5 +1,5 @@
 { mkDerivation, base, containers, fetchgit, hedgehog
-, optparse-applicative, parsec, lib, stdenv, template-haskell, text
+, optparse-applicative, parsec, lib, template-haskell, text
 }:
 mkDerivation {
   pname = "dconf2nix";

pkgs/development/tools/haskell/haskell-language-server/default.nix

@@ -7,7 +7,7 @@
 , hls-tactics-plugin, hslogger, hspec, hspec-core
 , hspec-expectations, lens, lsp-test, mtl, optparse-applicative
 , optparse-simple, ormolu, process, regex-tdfa, safe-exceptions
-, shake, lib, stdenv, stm, stylish-haskell, tasty, tasty-ant-xml
+, shake, lib, stm, stylish-haskell, tasty, tasty-ant-xml
 , tasty-expected-failure, tasty-golden, tasty-hunit, tasty-rerun
 , temporary, text, transformers, unordered-containers, with-utf8
 , yaml

pkgs/development/tools/haskell/haskell-language-server/hls-class-plugin.nix

@@ -1,6 +1,6 @@
 { mkDerivation, aeson, base, containers, fetchgit, ghc
 , ghc-exactprint, ghcide, haskell-lsp, hls-plugin-api, lens, shake
-, lib, stdenv, text, transformers, unordered-containers
+, lib, text, transformers, unordered-containers
 }:
 mkDerivation {
   pname = "hls-class-plugin";

pkgs/development/tools/haskell/haskell-language-server/hls-eval-plugin.nix

@@ -2,7 +2,7 @@
 , extra, fetchgit, filepath, ghc, ghc-boot-th, ghc-paths, ghcide
 , hashable, haskell-lsp, haskell-lsp-types, hls-plugin-api
 , parser-combinators, pretty-simple, QuickCheck, safe-exceptions
-, shake, lib, stdenv, temporary, text, time, transformers
+, shake, lib, temporary, text, time, transformers
 , unordered-containers
 }:
 mkDerivation {

pkgs/development/tools/haskell/haskell-language-server/hls-explicit-imports-plugin.nix

@@ -1,5 +1,5 @@
 { mkDerivation, aeson, base, containers, deepseq, fetchgit, ghc
-, ghcide, haskell-lsp-types, hls-plugin-api, shake, lib, stdenv, text
+, ghcide, haskell-lsp-types, hls-plugin-api, shake, lib, text
 , unordered-containers
 }:
 mkDerivation {

pkgs/development/tools/haskell/haskell-language-server/hls-hlint-plugin.nix

@@ -2,7 +2,7 @@
 , containers, data-default, deepseq, Diff, directory, extra
 , fetchgit, filepath, ghc, ghc-lib, ghc-lib-parser-ex, ghcide
 , hashable, haskell-lsp, hlint, hls-plugin-api, hslogger, lens
-, regex-tdfa, shake, lib, stdenv, temporary, text, transformers
+, regex-tdfa, shake, lib, temporary, text, transformers
 , unordered-containers
 }:
 mkDerivation {

pkgs/development/tools/haskell/haskell-language-server/hls-retrie-plugin.nix

@@ -1,6 +1,6 @@
 { mkDerivation, aeson, base, containers, deepseq, directory, extra
 , fetchgit, ghc, ghcide, hashable, haskell-lsp, haskell-lsp-types
-, hls-plugin-api, retrie, safe-exceptions, shake, lib, stdenv, text
+, hls-plugin-api, retrie, safe-exceptions, shake, lib, text
 , transformers, unordered-containers
 }:
 mkDerivation {

pkgs/development/tools/haskell/haskell-language-server/hls-tactics-plugin.nix

@@ -2,7 +2,7 @@
 , directory, extra, fetchgit, filepath, fingertree, generic-lens
 , ghc, ghc-boot-th, ghc-exactprint, ghc-source-gen, ghcide
 , haskell-lsp, hie-bios, hls-plugin-api, hspec, hspec-discover
-, lens, mtl, QuickCheck, refinery, retrie, shake, lib, stdenv, syb, text
+, lens, mtl, QuickCheck, refinery, retrie, shake, lib, syb, text
 , transformers
 }:
 mkDerivation {

pkgs/development/tools/haskell/vaultenv/default.nix

@@ -1,7 +1,7 @@
 { mkDerivation, async, base, bytestring, connection, containers
 , directory, hpack, hspec, hspec-discover, hspec-expectations
 , http-client, http-conduit, lens, lens-aeson, megaparsec, mtl
-, optparse-applicative, parser-combinators, retry, lib, stdenv, text
+, optparse-applicative, parser-combinators, retry, lib, text
 , unix, unordered-containers, utf8-string, fetchzip, dotenv
 }:
 mkDerivation rec {