Remove unused imports.

Test: all_tests.sh passes on device kernels

Change-Id: I12d00252adac888f1c3b48a00e0b61d005d8aa19
diff --git a/net/test/csocket.py b/net/test/csocket.py
index c5b673a..e041093 100644
--- a/net/test/csocket.py
+++ b/net/test/csocket.py
@@ -19,7 +19,6 @@
 import os
 import socket
 import struct
-import sys
 
 import cstruct
 
diff --git a/net/test/forwarding_test.py b/net/test/forwarding_test.py
index 527d780..cf00af1 100755
--- a/net/test/forwarding_test.py
+++ b/net/test/forwarding_test.py
@@ -20,7 +20,6 @@
 
 from socket import *
 
-import iproute
 import multinetwork_base
 import net_test
 import packets
diff --git a/net/test/iproute.py b/net/test/iproute.py
index be3803d..5cb680d 100644
--- a/net/test/iproute.py
+++ b/net/test/iproute.py
@@ -19,12 +19,9 @@
 # pylint: disable=g-bad-todo
 
 import errno
-import os
 import socket
 import struct
-import sys
 
-import csocket
 import cstruct
 import netlink
 
diff --git a/net/test/multinetwork_base.py b/net/test/multinetwork_base.py
index 7f1aebc..39a576b 100644
--- a/net/test/multinetwork_base.py
+++ b/net/test/multinetwork_base.py
@@ -29,7 +29,6 @@
 from scapy import all as scapy
 
 import csocket
-import cstruct
 import iproute
 import net_test
 
diff --git a/net/test/neighbour_test.py b/net/test/neighbour_test.py
index 24b434b..35b3b61 100755
--- a/net/test/neighbour_test.py
+++ b/net/test/neighbour_test.py
@@ -17,7 +17,6 @@
 import errno
 import random
 from socket import *  # pylint: disable=wildcard-import
-import subprocess
 import time
 import unittest
 
diff --git a/net/test/net_test.py b/net/test/net_test.py
index d1d62b2..9a5c635 100755
--- a/net/test/net_test.py
+++ b/net/test/net_test.py
@@ -14,7 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import errno
 import fcntl
 import os
 import random
diff --git a/net/test/netlink.py b/net/test/netlink.py
index ee57b20..99b1ac6 100644
--- a/net/test/netlink.py
+++ b/net/test/netlink.py
@@ -18,7 +18,6 @@
 
 # pylint: disable=g-bad-todo
 
-import errno
 import os
 import socket
 import struct
diff --git a/net/test/qtaguid_test.py b/net/test/qtaguid_test.py
index 08f51e7..cd5a7bc 100755
--- a/net/test/qtaguid_test.py
+++ b/net/test/qtaguid_test.py
@@ -20,7 +20,6 @@
 from socket import *  # pylint: disable=wildcard-import
 import unittest
 import os
-import csocket
 import net_test
 
 CTRL_PROCPATH = "/proc/net/xt_qtaguid/ctrl"
diff --git a/net/test/resilient_rs_test.py b/net/test/resilient_rs_test.py
index 26f0afa..4fcbb94 100755
--- a/net/test/resilient_rs_test.py
+++ b/net/test/resilient_rs_test.py
@@ -14,19 +14,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import binascii
 import posix
-import os
 import select
 from socket import *  # pylint: disable=wildcard-import
-import threading
 import time
 import unittest
 from math import pow
 
-import cstruct
 import multinetwork_base
-import net_test
 
 def accumulate(lis):
   total = 0
diff --git a/net/test/sock_diag_test.py b/net/test/sock_diag_test.py
index c7ac0d4..72b9a11 100755
--- a/net/test/sock_diag_test.py
+++ b/net/test/sock_diag_test.py
@@ -18,7 +18,6 @@
 from errno import *  # pylint: disable=wildcard-import
 import os
 import random
-import re
 from socket import *  # pylint: disable=wildcard-import
 import threading
 import time
@@ -26,7 +25,6 @@
 
 import multinetwork_base
 import net_test
-import netlink
 import packets
 import sock_diag
 import tcp_test
diff --git a/net/test/xfrm.py b/net/test/xfrm.py
index 56f581f..84b488f 100755
--- a/net/test/xfrm.py
+++ b/net/test/xfrm.py
@@ -18,14 +18,9 @@
 
 # pylint: disable=g-bad-todo
 
-import errno
-import os
 from socket import *  # pylint: disable=wildcard-import
-import struct
 
-import csocket
 import cstruct
-import net_test
 import netlink
 
 # Base netlink constants. See include/uapi/linux/netlink.h.
diff --git a/net/test/xfrm_test.py b/net/test/xfrm_test.py
index 734ac62..518d84f 100755
--- a/net/test/xfrm_test.py
+++ b/net/test/xfrm_test.py
@@ -16,20 +16,15 @@
 
 # pylint: disable=g-bad-todo,g-bad-file-header,wildcard-import
 from errno import *  # pylint: disable=wildcard-import
-import os
 import random
-import re
 from scapy import all as scapy
 from socket import *  # pylint: disable=wildcard-import
 import struct
 import subprocess
-import time
 import unittest
 
 import multinetwork_base
 import net_test
-import netlink
-import packets
 import xfrm
 
 XFRM_ADDR_ANY = 16 * "\x00"