The EIP150Hash was an idea where, after the fork, we hardcoded the forked hash as an extra defensive mechanism. It wasn't really used, since forks weren't contentious and for all the various testnets and private networks it's been a hassle to have around.
This change removes that config field.
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Signed-off-by: jsvisa <delweng@gmail.com>
node.Node no longer registers any account manager backends by default,
they need to be registered explicitly.
For ethash-based tests, we actually don't need any accounts in the miner
keystore. Just set the etherbase instead to make mining work. For
clique, the signer account must be in the keystore.
The change also adds interrupt handling in stress tests.
