[qa] Remove unused code

qa/rpc-tests/rpcbind_test.py

@@ -5,13 +5,11 @@
 
 # Test for -rpcbind, as well as -rpcallowip and -rpcconnect
 
-import tempfile
-import traceback
-
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import *
 from test_framework.netutil import *
 
+
 class RPCBindTest(BitcoinTestFramework):
 
     def __init__(self):
@@ -109,4 +107,4 @@ class RPCBindTest(BitcoinTestFramework):
             pass
 
 if __name__ == '__main__':
-    RPCBindTest ().main ()
+    RPCBindTest().main()