treewide: remove redundant rec

pkgs/tools/system/bar/default.nix

@@ -1,6 +1,6 @@
 { stdenv, fetchurl }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   name = "bar-1.11.1";
 
   src = fetchurl {

pkgs/tools/system/collectd/data.nix

@@ -1,6 +1,6 @@
 { stdenv, collectd }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   inherit (collectd) meta version;
 
   pname = "collectd-data";

pkgs/tools/system/colorls/default.nix

@@ -1,6 +1,6 @@
 { lib, bundlerApp, ruby, bundlerUpdateScript }:
 
-bundlerApp rec {
+bundlerApp {
   pname = "colorls";
 
   gemdir = ./.;

pkgs/tools/system/das_watchdog/default.nix

@@ -1,6 +1,6 @@
 { stdenv, fetchgit, libgtop, xmessage, which, pkgconfig }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   pname = "das_watchdog";
   version = "git-2015-09-12";
 

pkgs/tools/system/datefudge/default.nix

@@ -1,6 +1,6 @@
 { stdenv, fetchgit }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   pname = "datefudge";
   version = "1.22";
 

pkgs/tools/system/dog/default.nix

@@ -1,6 +1,6 @@
 {stdenv, fetchurl}:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   name = "dog-1.7";
 
   src = fetchurl {

pkgs/tools/system/hardlink/default.nix

@@ -1,7 +1,7 @@
 { stdenv, fetchurl, pcre2 }:
 
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   pname = "hardlink";
   version = "1.3-4";
 

pkgs/tools/system/illum/default.nix

@@ -1,6 +1,6 @@
 { stdenv, fetchgit, pkgconfig, ninja, libevdev, libev }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   version = "0.4";
   pname = "illum";
 

pkgs/tools/system/ior/default.nix

@@ -5,7 +5,7 @@ let
   sha256 = "039rh4z3lsj4vqjsqgakk0b7dkrdrkkzj0p1cjikpc9gn36zpghc";
 in
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   pname = "ior";
   inherit version;
 

pkgs/tools/system/pcstat/default.nix

@@ -1,6 +1,6 @@
 { stdenv, buildGoPackage, fetchFromGitHub }:
 
-buildGoPackage rec {
+buildGoPackage {
   pname = "pcstat-unstable";
   version = "2017-05-28";
 

pkgs/tools/system/plan9port/default.nix

@@ -5,7 +5,7 @@
 , perl ? null  # For building web manuals
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   pname = "plan9port";
   version = "2019-02-25";
 

pkgs/tools/system/proot/default.nix

@@ -1,7 +1,7 @@
 { stdenv, fetchFromGitHub
 , talloc, docutils, swig, python, coreutils, enablePython ? true }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   pname = "proot";
   version = "20190510";
 

pkgs/tools/system/ps_mem/default.nix

@@ -3,7 +3,7 @@
 let
   version = "3.12";
   pname = "ps_mem";
-in pythonPackages.buildPythonApplication rec {
+in pythonPackages.buildPythonApplication {
   name = "${pname}-${version}";
 
   src = fetchFromGitHub {

pkgs/tools/system/systemd-journal2gelf/default.nix

@@ -1,6 +1,6 @@
 { stdenv, buildGoModule, fetchFromGitHub }:
 
-buildGoModule rec {
+buildGoModule {
   pname = "SystemdJournal2Gelf-unstable";
   version = "20190702";