pkgs/*: remove unreferenced function arguments

pkgs/shells/bash/4.4.nix

@@ -5,7 +5,6 @@
 # patch for cygwin requires readline support
 , interactive ? stdenv.isCygwin, readline70 ? null
 , withDocs ? false, texinfo ? null
-, self
 }:
 
 with stdenv.lib;

pkgs/shells/elvish/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchFromGitHub }:
+{ stdenv, buildGoPackage, fetchFromGitHub }:
 
 buildGoPackage rec {
   name = "elvish-${version}";

pkgs/shells/fish/default.nix

@@ -1,5 +1,5 @@
 { stdenv, fetchurl, coreutils, utillinux,
-  nettools, kbd, bc, which, gnused, gnugrep,
+  nettools, bc, which, gnused, gnugrep,
   groff, man-db, getent, libiconv, pcre2,
   gettext, ncurses, python3
 

pkgs/shells/oh/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchgit, fetchhg, fetchbzr, fetchsvn }:
+{ stdenv, buildGoPackage, fetchgit }:
 
 buildGoPackage rec {
   name = "oh-${version}";

pkgs/shells/oil/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchurl, coreutils }:
+{ stdenv, lib, fetchurl }:
 let
   version = "0.3.0";
 in

pkgs/shells/powershell/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchgit, autoPatchelfHook, fetchzip, libunwind, libuuid, icu, curl,
+{ stdenv, autoPatchelfHook, fetchzip, libunwind, libuuid, icu, curl,
   makeWrapper, less, openssl, pam, lttng-ust }:
 
 let platformString = if stdenv.isDarwin then "osx"

pkgs/shells/zsh/antibody/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, lib, buildGoPackage, fetchFromGitHub }:
+{ lib, buildGoPackage, fetchFromGitHub }:
 
 buildGoPackage rec {
   name = "antibody-${version}";

pkgs/shells/zsh/zsh-powerlevel9k/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, zsh }:
+{ stdenv, fetchFromGitHub }:
 
 # To make use of this derivation, use
 # `programs.zsh.promptInit = "source ${pkgs.zsh-powerlevel9k}/share/zsh-powerlevel9k/powerlevel9k.zsh-theme";`

pkgs/shells/zsh/zsh-prezto/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchpatch, fetchgit, fetchFromGitHub }:
+{ stdenv, fetchgit }:
 
 stdenv.mkDerivation rec {
   name = "zsh-prezto-2017-12-03";