BitVacuumer: don't reinvent BitStreamCache

[LebedevRI]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.20%. Comparing base (b4eed02) to head (b5c56e7).
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #28      +/-   ##
==========================================
- Coverage   94.21%   94.20%   -0.01%     
==========================================
  Files          24       24              
  Lines        3024     3021       -3     
  Branches     3024     3021       -3     
==========================================
- Hits         2849     2846       -3     
  Misses          3        3              
  Partials      172      172              

Flag	Coverage Δ
LLVM=16	94.06% <80.00%> (-0.10%)	⬇️
LLVM=19	94.20% <100.00%> (-0.01%)	⬇️
endianness=big	94.06% <80.00%> (-0.11%)	⬇️
endianness=little	94.06% <80.00%> (-0.10%)	⬇️
host=aarch64	94.06% <80.00%> (-0.10%)	⬇️
host=x86_64	94.20% <100.00%> (-0.01%)	⬇️
linux	94.20% <100.00%> (-0.01%)	⬇️
macos	94.06% <80.00%> (-0.10%)	⬇️
profile=dev	94.20% <100.00%> (-0.01%)	⬇️
profile=release	94.20% <100.00%> (-0.01%)	⬇️
rust=nightly	94.20% <100.00%> (-0.01%)	⬇️
rust=nightly-msvc	94.06% <80.00%> (-0.10%)	⬇️
rust=stable	94.20% <100.00%> (-0.01%)	⬇️
rust=stable-msvc	94.06% <80.00%> (-0.10%)	⬇️
target=aarch64	94.06% <80.00%> (-0.10%)	⬇️
target=powerpc64	94.06% <80.00%> (-0.11%)	⬇️
target=x86_64	94.06% <80.00%> (-0.10%)	⬇️
windows	94.06% <80.00%> (-0.10%)	⬇️

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