Remove a few more Python 2-compatibility workarounds

cibuildwheel/bashlex_eval.py

@@ -60,12 +60,8 @@ def evaluate_word_node(node, context):
 def evaluate_command_node(node, context):
     words = [evaluate_node(part, context=context) for part in node.parts]
     command = ' '.join(words)
-    output = subprocess.check_output(shlex.split(command), env=context.environment)
+    return subprocess.check_output(shlex.split(command), env=context.environment, universal_newlines=True)
 
-    if sys.version_info[0] >= 3:
-        return output.decode('utf8', 'replace')
-    else:
-        return output
 
 def evaluate_parameter_node(node, context):
     return context.environment.get(node.value, '')

cibuildwheel/macos.py

@@ -32,9 +32,7 @@ def build(project_dir, output_dir, test_command, test_requires, test_extras, bef
     get_pip_url = 'https://bootstrap.pypa.io/get-pip.py'
     get_pip_script = '/tmp/get-pip.py'
 
-    pkgs_output = subprocess.check_output(['pkgutil',  '--pkgs'])
-    if sys.version_info[0] >= 3:
-        pkgs_output = pkgs_output.decode('utf8')
+    pkgs_output = subprocess.check_output(['pkgutil',  '--pkgs'], universal_newlines=True)
     installed_system_packages = pkgs_output.splitlines()
 
     def call(args, env=None, cwd=None, shell=False):

setup.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 import os, io