Remove unneeded imports from installtree.py

src/pylorax/installtree.py

@@ -24,30 +24,17 @@ logger = logging.getLogger("pylorax.installtree")
 
 import sys
 import os
-import ConfigParser
-import tempfile
 import shutil
 import gzip
-import shlex
-import fnmatch
 import re
-import itertools
 import glob
 import time
-import datetime
-import itertools
 import subprocess
 import operator
-import math
 
 from collections import namedtuple
 
 from base import BaseLoraxClass
-import output
-
-import yum
-import yumhelper
-import ltmpl
 
 import constants
 from sysutils import *