wic: code cleanup: unused imports

Fixed pylint warning 'Unused import'

(From OE-Core rev: dfde8bdae3ae151ffed5777b920d24c774e5da2c)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/lib/wic/utils/fs_related.py

@@ -18,13 +18,7 @@
 
 from __future__ import with_statement
 import os
-import sys
 import errno
-import stat
-import random
-import string
-import time
-import uuid
 
 from wic import msger
 from wic.utils import runner

scripts/lib/wic/utils/misc.py

@@ -16,7 +16,6 @@
 # Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 import os
-import sys
 import time
 
 def build_name(kscfg, release=None, prefix = None, suffix = None):

scripts/lib/wic/utils/partitionedfs.py

@@ -18,8 +18,6 @@
 # with this program; if not, write to the Free Software Foundation, Inc., 59
 # Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-import os
-
 from wic import msger
 from wic.utils import runner
 from wic.utils.errors import ImageError