Clean up more instances of create_transaction()

Summary:
These tests should be using create_tx_with_script() introduced in
D4821.

Test Plan:

test_runner.py abc-p2p-compactblocks abc-p2p-fullblocktest

Reviewers: deadalnix, Fabien, jasonbcox, O1 Bitcoin ABC, #bitcoin_abc

Reviewed By: jasonbcox, O1 Bitcoin ABC, #bitcoin_abc

Differential Revision: https://reviews.bitcoinabc.org/D4849