Revert "Replace most of preprocessor usage in nvcomp adapter with constexpr"

[vuule]

Reverts #11980

The PR was made under the assumption that if constexpr branches can contain invalid code, if the branch is not taken. However, this only holds for templates.

[ttnghia]

🥶

[codecov]

Codecov Report

Base: 87.40% // Head: 88.15% // Increases project coverage by +0.74% 🎉

Coverage data is based on head (14477bb) compared to base (f72c4ce).
Patch has no changes to coverable lines.

Additional details and impacted files

@@               Coverage Diff                @@
##           branch-22.12   #11999      +/-   ##
================================================
+ Coverage         87.40%   88.15%   +0.74%     
================================================
  Files               133      133              
  Lines             21833    21995     +162     
================================================
+ Hits              19084    19389     +305     
+ Misses             2749     2606     -143     

Impacted Files	Coverage Δ
python/strings_udf/strings_udf/__init__.py	86.27% <0.00%> (-10.61%)	⬇️
python/cudf/cudf/io/text.py	91.66% <0.00%> (-8.34%)	⬇️
python/cudf/cudf/core/_base_index.py	82.20% <0.00%> (-3.35%)	⬇️
python/strings_udf/strings_udf/_typing.py	94.73% <0.00%> (-1.06%)	⬇️
python/cudf/cudf/testing/dataset_generator.py	72.83% <0.00%> (-0.42%)	⬇️
python/dask_cudf/dask_cudf/backends.py	84.90% <0.00%> (-0.37%)	⬇️
python/dask_cudf/dask_cudf/core.py	73.92% <0.00%> (-0.21%)	⬇️
python/cudf/cudf/io/orc.py	92.94% <0.00%> (-0.09%)	⬇️
python/cudf/cudf/__init__.py	90.69% <0.00%> (ø)
python/cudf/cudf/utils/ioutils.py	79.47% <0.00%> (ø)
... and 22 more

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[vuule]

@gpucibot merge

[bdice]

For posterity:

The symbols in the if constexpr body may have to exist, even if they're supposed to be compiled out. https://godbolt.org/z/h3a7vazzc

Older nvcomp versions do not have some symbols that are defined in later versions, which led to an error for some users.