tools: drop netifaces requirement from keyctl-proxy

tools/keyctl-proxy

@@ -1,7 +1,6 @@
 #!/usr/bin/env python3
 import binascii
 import sys
-import netifaces
 import Pyro4
 import serpent
 
@@ -66,12 +65,11 @@ class KeyctlProxy(object):
 
 if __name__ == '__main__':
     if len(sys.argv) > 1:
-        iface = sys.argv[1]
+        ipaddr = sys.argv[1]
     else:
-        print('Usage: keyctl-proxy interface')
+        print('Usage: keyctl-proxy ipaddress')
         sys.exit(1)
-    host = netifaces.ifaddresses(iface)[netifaces.AF_INET][0]['addr']
-    daemon = Pyro4.Daemon(host=host, port=PORT)
+    daemon = Pyro4.Daemon(host=ipaddr, port=PORT)
     proxy = KeyctlProxy()
     uri = daemon.register(proxy, 'keyctl')
     print('keyctl-proxy running at URI: "%s"' % uri)