Remove spurious rng argument to encode_unified.

zcash_test_vectors/unified_address.py

@@ -91,7 +91,7 @@ def main():
             else:
                 unknown_bytes = None
 
-            ua = encode_unified(rng, receivers, "u")
+            ua = encode_unified(receivers, "u")
 
             expected_lengths = {
                 ORCHARD_ITEM: 43,

zcash_test_vectors/unified_encoding.py

@@ -18,7 +18,7 @@ def padding(hrp):
     assert(len(hrp) <= 16)
     return bytes(hrp, "utf8") + bytes(16 - len(hrp))
 
-def encode_unified(rng, items, hrp):
+def encode_unified(items, hrp):
     encoded_items = []
 
     has_p2pkh = False

zcash_test_vectors/unified_full_viewing_keys.py

@@ -90,7 +90,7 @@ def main():
             (P2PKH_ITEM, t_key_bytes),
             (unknown_tc, unknown_bytes),
         ]
-        ufvk = encode_unified(rng, receivers, "uview")
+        ufvk = encode_unified(receivers, "uview")
 
         expected_lengths = {
             P2PKH_ITEM: 65,

zcash_test_vectors/unified_incoming_viewing_keys.py

@@ -86,7 +86,7 @@ def main():
             (P2PKH_ITEM, t_key_bytes),
             (unknown_tc, unknown_bytes),
         ]
-        uivk = encode_unified(rng, receivers, "uivk")
+        uivk = encode_unified(receivers, "uivk")
 
         expected_lengths = {
             P2PKH_ITEM: 65,