diff --git a/test/functional/test_framework/messages.py b/test/functional/test_framework/messages.py
index 40d02f3ee..eee24910c 100644
--- a/test/functional/test_framework/messages.py
+++ b/test/functional/test_framework/messages.py
@@ -167,21 +167,6 @@ def ser_string_vector(l):
     return r
 
 
-def deser_int_vector(f):
-    nit = deser_compact_size(f)
-    r = []
-    for i in range(nit):
-        t = struct.unpack("<i", f.read(4))[0]
-        r.append(t)
-    return r
-
-
-def ser_int_vector(l):
-    r = ser_compact_size(len(l))
-    for i in l:
-        r += struct.pack("<i", i)
-    return r
-
 # Deserialize from a hex string representation (eg from RPC)
 def FromHex(obj, hex_string):
     obj.deserialize(BytesIO(hex_str_to_bytes(hex_string)))