Drop lines precomputation in BLS pairinig check

[chfast]

Pre-computing the lines for the Miller loop in the BLS pairing check don't improve performance because the lines are used only once.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.54%. Comparing base (94818d7) to head (5820deb).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1155      +/-   ##
==========================================
- Coverage   94.54%   94.54%   -0.01%     
==========================================
  Files         167      167              
  Lines       18234    18231       -3     
==========================================
- Hits        17239    17236       -3     
  Misses        995      995              

Flag	Coverage Δ
eof_execution_spec_tests	22.49% <0.00%> (+<0.01%)	⬆️
ethereum_tests	28.32% <0.00%> (+<0.01%)	⬆️
ethereum_tests_silkpre	21.00% <0.00%> (+<0.01%)	⬆️
execution_spec_tests	20.97% <100.00%> (-0.02%)	⬇️
unittests	89.76% <100.00%> (-0.01%)	⬇️

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Files with missing lines	Coverage Δ
lib/evmone_precompiles/bls.cpp	98.08% <100.00%> (-0.03%)	⬇️

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