### Summary

The config option `ALLOW_WORLD_READABLE_TMPFILES` should be removed from `lib/ansible/config/base.yml`. It was scheduled for removal in 2.14.

### Issue Type

Bug Report

### Component Name

`lib/ansible/config/base.yml`

### Ansible Version

2.14

### Configuration

N/A

### OS / Environment

N/A

### Steps to Reproduce

N/A

### Expected Results

N/A

### Actual Results

N/A
group = self.get_shell_option('common_remote_group')
        if group is not None:
            res = self._remote_chgrp(remote_paths, group)
            if res['rc'] == 0:
                
                if self.get_shell_option('world_readable_temp'):
                    display.warning(
                        'Both common_remote_group and '
                        'allow_world_readable_tmpfiles are set. chgrp was '
                        'successful, but there is no guarantee that Ansible '
                        'will be able to read the files after this operation, '
                        'particularly if common_remote_group was set to a '
                        'group of which the unprivileged become user is not a '
                        'member. In this situation, '
                        'allow_world_readable_tmpfiles is a no-op. See this '
                        'URL for more details: %s'
                        '#risks-of-becoming-an-unprivileged-user' % become_link)
                if execute:
                    group_mode = 'g+rwx'
                else:
                    group_mode = 'g+rw'
                res = self._remote_chmod(remote_paths, group_mode)
                if res['rc'] == 0:
                    return remote_paths
        
        if self.get_shell_option('world_readable_temp'):