Removed unused imports

import os

import sys

import pty

import errno

import fcntl

import threading

from fcntl import ioctl

import cPickle as pickle

from itertools import chain, imap

from itertools import imap

from subprocess import Popen, PIPE, STDOUT

from sjrpc.utils import pass_connection, threadless

from sjrpc.core.protocols import TunnelProtocol

from sjrpc.core.exceptions import RpcError

from cloudcontrol.common.client.tags import Tag, tag_inspector, TagDB

from cloudcontrol.common.client.plugins import Base as BasePlugin