Clean up imports to be pyflakes-checkable. fixes #2450

Signed-off-by: Daira Hopwood <daira@jacaranda.org>

qa/rpc-tests/zmq_test.py

@@ -8,19 +8,10 @@
 #
 
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import *
-import zmq
-import binascii
-import struct
+from test_framework.util import assert_equal, bytes_to_hex_str, start_nodes
 
-try:
-    import http.client as httplib
-except ImportError:
-    import httplib
-try:
-    import urllib.parse as urlparse
-except ImportError:
-    import urlparse
+import zmq
+import struct
 
 class ZMQTest (BitcoinTestFramework):