lava_helper: cleanup unused imports

Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
Change-Id: Ic9cdd152b14dc09c2c63e5cd628992f09ed9b92b
diff --git a/lava_helper/lava_create_jobs.py b/lava_helper/lava_create_jobs.py
index fcc3ff6..c99e427 100755
--- a/lava_helper/lava_create_jobs.py
+++ b/lava_helper/lava_create_jobs.py
@@ -18,10 +18,7 @@
 
 import os
 import sys
-import shutil
 import argparse
-from copy import deepcopy
-from collections import OrderedDict
 from jinja2 import Environment, FileSystemLoader
 from lava_helper_configs import *
 
diff --git a/lava_helper/lava_submit_jobs.py b/lava_helper/lava_submit_jobs.py
index b28700e..2e0ab2f 100755
--- a/lava_helper/lava_submit_jobs.py
+++ b/lava_helper/lava_submit_jobs.py
@@ -18,11 +18,7 @@
 import os
 import glob
 import sys
-import shutil
 import argparse
-from copy import deepcopy
-from collections import OrderedDict
-from jinja2 import Environment, FileSystemLoader
 from lava_helper_configs import *
 
 try:
diff --git a/lava_helper/lava_wait_jobs.py b/lava_helper/lava_wait_jobs.py
index 586311f..d0578b2 100755
--- a/lava_helper/lava_wait_jobs.py
+++ b/lava_helper/lava_wait_jobs.py
@@ -17,14 +17,10 @@
 
 import os
 import sys
-import shutil
 import time
 import yaml
 import argparse
-import threading
 import csv
-from copy import deepcopy
-from collections import OrderedDict
 from jinja2 import Environment, FileSystemLoader
 from lava_helper_configs import *
 from lava_helper import test_lava_dispatch_credentials