2024 08 23 flow erc20 preview empty flow io test

[Erikd-dev]

Motivation

Move deprecated " flow erc20 preview empty flow io" test.

Solution

Moved deprecated test.

Checks

By submitting this for review, I'm confirming I've done the following:

• [x] made this PR as small as possible
• [ ] unit-tested any new functionality
• [x] linked any relevant issues or PRs