diff --git a/scapy/contrib/xnt.py b/scapy/contrib/xnt.py
index dd55e51..8208a5f 100644
--- a/scapy/contrib/xnt.py
+++ b/scapy/contrib/xnt.py
@@ -7,11 +7,6 @@
 from scapy.fields import *
 from scapy.all import * # Otherwise failing at the UDP reference below
 
-#PLT data header
-class INT_PLT_HDR(Packet):
-    name = "INT_PLT_data_header"
-    fields_desc = [ IntField("path_latency_encoding", 0x00000000) ]
-
 
 class VXLAN_GPE_INT(Packet):
     name = "VXLAN_GPE_INT_header"
@@ -20,11 +15,6 @@ class VXLAN_GPE_INT(Packet):
                     XByteField("length", 0x00),
                     XByteField("next_proto", 0x03) ]
 
-#PLT data header for GENEVE
-class INT_PLT_HDR_GENEVE(Packet):
-    name = "INT_PLT_data_header_geneve"
-    fields_desc = [ IntField("path_latency_encoding", 0x00000000) ]
-
 class GENEVE_INT(Packet):
     name = "GENEVE_INT_header"
     fields_desc = [ XShortField("int_opt", 0x0103),
@@ -47,40 +37,3 @@ class INT_hop_info(Packet):
     name = "INT_hop_info"
     fields_desc = [ BitField("bos", 0, 1),
                     XBitField("val", 0x7FFFFFFF, 31) ]
-
-
-class INT_L45_HEAD(Packet):
-    name = "INT_L45_HEAD"
-    fields_desc = [ XByteField("int_type", 0x01),
-                   XByteField("rsvd0", 0x00),
-                   XByteField("length", 0x00),
-                   XByteField("rsvd1", 0x00) ]
-
-class INT_L45_TAIL(Packet):
-    name = "INT_L45_TAIL"
-    fields_desc = [ XByteField("next_proto", 0x01),
-                   XShortField("proto_param", 0x0000),
-                   XByteField("rsvd", 0x00) ]
-
-class ICMP_INTL45(ICMP):
-    name = "ICMP_INTL45"
-
-#  bring back the original packet.py guess_payload_class that is overridden by ICMP
-    def guess_payload_class(self, payload):
-        """DEV: Guesses the next payload class from layer bonds. Can be overloaded to use a different mechanism."""
-        for t in self.aliastypes:
-            for fval, cls in t.payload_guess:
-                ok = 1
-                for k in fval.keys():
-                    if not hasattr(self, k) or fval[k] != self.getfieldval(k):
-                        ok = 0
-                        break
-                if ok:
-                    return cls
-        return self.default_payload_class(payload)
-
-class TCP_INTL45(TCP):
-    name = "TCP_INTL45"
-
-class UDP_INTL45(UDP):
-    name = "UDP_INTL45"