test: Remove unused imports

test/functional/feature_segwit.py

@@ -18,7 +18,13 @@ from test_framework.blocktools import witness_script, send_to_witness
 from test_framework.messages import COIN, COutPoint, CTransaction, CTxIn, CTxOut, FromHex, sha256, ToHex
 from test_framework.script import CScript, OP_HASH160, OP_CHECKSIG, OP_0, hash160, OP_EQUAL, OP_DUP, OP_EQUALVERIFY, OP_1, OP_2, OP_CHECKMULTISIG, OP_TRUE, OP_DROP
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import assert_equal, assert_raises_rpc_error, connect_nodes, hex_str_to_bytes, sync_blocks, try_rpc
+from test_framework.util import (
+    assert_equal,
+    assert_raises_rpc_error,
+    connect_nodes,
+    hex_str_to_bytes,
+    try_rpc,
+)
 
 NODE_0 = 0
 NODE_2 = 2