python39Packages.buildbot: remove alias

pkgs/development/python-modules/buildbot/default.nix

@@ -1,9 +1,10 @@
-{ stdenv, lib, buildPythonPackage, fetchPypi, makeWrapper, isPy3k,
-  python, twisted, jinja2, zope_interface, sqlalchemy,
-  sqlalchemy_migrate, python-dateutil, txaio, autobahn, pyjwt, pyyaml, unidiff, treq,
-  txrequests, pypugjs, boto3, moto, mock, python-lz4, setuptoolsTrial,
-  isort, pylint, flake8, buildbot-worker, buildbot-pkg, buildbot-plugins,
-  parameterized, git, openssh, glibcLocales, ldap3, nixosTests }:
+{ stdenv, lib, buildPythonPackage, fetchPypi, makeWrapper, isPy3k
+, python, twisted, jinja2, zope_interface, sqlalchemy
+, sqlalchemy_migrate, python-dateutil, txaio, autobahn, pyjwt, pyyaml, unidiff, treq
+, txrequests, pypugjs, boto3, moto, mock, lz4, setuptoolsTrial
+, isort, pylint, flake8, buildbot-worker, buildbot-pkg, buildbot-plugins
+, parameterized, git, openssh, glibcLocales, ldap3, nixosTests
+}:
 
 let
   withPlugins = plugins: buildPythonPackage {
@@ -56,7 +57,7 @@ let
       boto3
       moto
       mock
-      python-lz4
+      lz4
       setuptoolsTrial
       isort
       pylint