The name `get_safe_execution_payload_hash` is misleading, as it returns
the execution block hash. There is no concept of a payload hash. Rename
the function, and also update some documentation for clarity.
* Remove the work-in-progress note in Bellatrix spec
Bellatrix is done and released.
* Remove work-in-progress notes in Bellatrix specs
* Remove work-in-progress notes in Bellatrix specs
* Remove work-in-progress notes in Bellatrix specs
Documentation on how to call `prepare_execution_payload` had the params
for `safe_block_hash` and `finalized_block` hash flipped compared to the
function definition. Also updated tests for consistency.
Etan Kissling
Hsiao-Wei Wang
ethosdev
Danny Ryan
Mikhail Kalinin