diff --git a/usb_application/ccid.py b/usb_application/ccid.py
index 24425cf2..d6b69dba 100755
--- a/usb_application/ccid.py
+++ b/usb_application/ccid.py
@@ -5,31 +5,6 @@ from pySim.utils import h2b, swap_nibbles, rpad, dec_imsi, dec_iccid
 from pySim.transport.pcsc import PcscSimLink
 
 
-class find_class(object):
-    def __init__(self, class_):
-        self._class = class_
-    def __call__(self, device):
-        # first, let's check the device
-        if device.bDeviceClass == self._class:
-            return True
-        # ok, transverse all devices to find an
-        # interface that matches our class
-        for cfg in device:
-            # find_descriptor: what's it?
-            intf = usb.util.find_descriptor(
-                                        cfg,
-                                        bInterfaceClass=self._class
-                                )
-            if intf is not None:
-                return True
-
-        return False
-
-def set_conf(conf):
-    devs = usb.core.find(find_all=1, custom_match=find_class(0xb))  # 0xb = Smartcard
-    for dev in devs:
-        dev.set_configuration(conf)
-
 
 def pySim_read():
     sl = PcscSimLink(0)