scripted-diff: Use generate* from TestFramework

-BEGIN VERIFY SCRIPT-
 sed --regexp-extended -i \
     's/((self\.)?(nodes\[[^]]+\]|[a-z_]*(wallet|node)[0-9a-z_]*))\.(generate(|toaddress|block|todescriptor)(\(|, ))/self.\5\1, /g' \
     $(git grep -l generate ./test | grep -v 'test_framework/' | grep -v 'feature_rbf')
-END VERIFY SCRIPT-

test/functional/mempool_accept_wtxid.py

@@ -44,7 +44,7 @@ class MempoolWtxidTest(BitcoinTestFramework):
 
         self.log.info('Start with empty mempool and 101 blocks')
         # The last 100 coinbase transactions are premature
-        blockhash = node.generate(101)[0]
+        blockhash = self.generate(node, 101)[0]
         txid = node.getblock(blockhash=blockhash, verbosity=2)["tx"][0]["txid"]
         assert_equal(node.getmempoolinfo()['size'], 0)
 
@@ -62,7 +62,7 @@ class MempoolWtxidTest(BitcoinTestFramework):
         privkeys = [node.get_deterministic_priv_key().key]
         raw_parent = node.signrawtransactionwithkey(hexstring=parent.serialize().hex(), privkeys=privkeys)['hex']
         parent_txid = node.sendrawtransaction(hexstring=raw_parent, maxfeerate=0)
-        node.generate(1)
+        self.generate(node, 1)
 
         peer_wtxid_relay = node.add_p2p_connection(P2PTxInvStore())