Common: Remove retired dev networks

[holgerd77]

As some housekeeping I guess we can remove the retired dev networks again from Common, these are:

• Yolov3
• Aleut
• Baikal

References to remove are:

• The chain files (aleut.json)
• References in chains/index.ts
• Likely some test cases
• The listing in the respective README section

(or do we want to keep for some kind of historical reasons or something?)

[emersonmacro]

@holgerd77 I put up a PR (#1296) - it was pretty straightforward cleanup. I didn't see any affected tests in the common package, but the automated checks on the PR caught that there is a test in the tx package that uses the aleut network: https://github.com/ethereumjs/ethereumjs-monorepo/pull/1296/checks?check_run_id=2808390978#step:7:23

Looks like it's a set of tests for EIP1559 transactions - https://github.com/ethereumjs/ethereumjs-monorepo/blob/master/packages/tx/test/eip1559.spec.ts#L9

I'm not fully up to speed on EIP1559... Can I update that test file to use a different chain? Should I add aleut back to the common package?

[emersonmacro]

I updated the PR, converted the eip1559 test in tx to use rinkeby instead of aleut

[holgerd77]

Closed by #1296