Revert "PR#3568: kiwi: don't bind builders's /dev"

This reverts commit 56cea9adc2, reversing
changes made to e9b5ec215d.

mock was changed meanwhile to automatically bind device mapper into the
buildroot.

Related: https://pagure.io/koji/issue/3567
https://pagure.io/koji/pull-request/3585
https://github.com/rpm-software-management/mock/pull/1005

plugins/builder/kiwi.py

@@ -304,10 +304,6 @@ class KiwiCreateImageTask(BaseBuildTask):
                 desc_url, desc_path, opts=None):
         self.opts = opts
         build_tag = target_info['build_tag']
-        if opts.get('bind_dev'):
-            bind_opts = {'dirs': {'/dev': '/dev'}}
-        else:
-            bind_opts = None
         broot = BuildRoot(self.session, self.options,
                           tag=build_tag,
                           arch=arch,
@@ -315,7 +311,7 @@ class KiwiCreateImageTask(BaseBuildTask):
                           repo_id=repo_info['id'],
                           install_group='kiwi-build',
                           setup_dns=True,
-                          bind_opts=bind_opts)
+                          bind_opts={'dirs': {'/dev': '/dev', }})
         broot.workdir = self.workdir
 
         # create the mock chroot