Downgrade EIP-7069 and 7620 testing readiness

[pdobacz]

I've found gaps in coverage of evmone produced by EEST and ethereum/tests, so I think we should downgrade these two and work on filling in the gaps.

Rough notes on what I've found to be missing, correct me if I missed sth:

1. RETURNDATACOPY copy cost oog https://app.codecov.io/gh/ethereum/evmone/blob/master/lib%2Fevmone%2Finstructions.hpp?flags%5B0%5D=eof_execution_spec_tests&flags%5B1%5D=ethereum_tests&flags%5B2%5D=execution_spec_tests&flags%5B3%5D=ethereum_tests_silkpre
2. DATACOPY copy cost oog and mem expansion cost oog https://app.codecov.io/gh/ethereum/evmone/blob/master/lib%2Fevmone%2Finstructions.hpp?flags%5B0%5D=eof_execution_spec_tests&flags%5B1%5D=ethereum_tests&flags%5B2%5D=execution_spec_tests&flags%5B3%5D=ethereum_tests_silkpre
3. CALLF runtime stack overflow https://app.codecov.io/gh/ethereum/evmone/blob/master/lib%2Fevmone%2Finstructions.hpp?flags%5B0%5D=eof_execution_spec_tests&flags%5B1%5D=ethereum_tests&flags%5B2%5D=execution_spec_tests&flags%5B3%5D=ethereum_tests_silkpre
4. JUMPF runtime stack overflow https://app.codecov.io/gh/ethereum/evmone/blob/master/lib%2Fevmone%2Finstructions.hpp?flags%5B0%5D=eof_execution_spec_tests&flags%5B1%5D=ethereum_tests&flags%5B2%5D=execution_spec_tests&flags%5B3%5D=ethereum_tests_silkpre
5. instruction_calls - many areas missing https://app.codecov.io/gh/ethereum/evmone/blob/master/lib%2Fevmone%2Finstructions_calls.cpp?flags%5B0%5D=eof_execution_spec_tests&flags%5B1%5D=ethereum_tests&flags%5B2%5D=execution_spec_tests&flags%5B3%5D=ethereum_tests_silkpre
   • EXT*CALL cold access oog
   • EXT*CALL mem expansion oog
   • EXT*CALL input
   • EXT*CALL static mode violation on value transfer
   • EXT*CALL account creation on value transfer
   • EXT*CALL oog on account creatoin on value transfer
   • EXT*CALL "light failure" scenarios:
     • msg.depth
     • not enough balance
     • MIN_CALLEE_GAS violation
   • EXT*CALL callee reverts
   • EOFCREATE - static mode violation
   • EOFCREATE - mem expansion oog
   • EOFCREATE - msg.depth light failure

[chfast]

I think should only consider execution_spec_tests in the analysis.

[pdobacz]

CALLF / JUMPF points covered in ethereum/execution-spec-tests#678 and ethereum/execution-spec-tests#690

Given the two other PRs which GH linked for us above, only the EXT*CALL point is remaining