refactor(storage): remove new_adhoc from CellBasedTable

[lmatz]

What's changed and what's your intention?

It is not ad-hoc anymore. Was a workaround

Checklist

- [ ] I have written necessary docs and comments
- [ ] I have added necessary unit tests and integration tests

• All checks passed in ./risedev check (or alias, ./risedev c)

Refer to a related PR or issue link (optional)

[codecov]

Codecov Report

Merging #3230 (16592d6) into main (4342668) will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main    #3230      +/-   ##
==========================================
- Coverage   73.52%   73.51%   -0.01%     
==========================================
  Files         744      744              
  Lines      101452   101447       -5     
==========================================
- Hits        74590    74582       -8     
- Misses      26862    26865       +3     

Flag	Coverage Δ
rust	73.51% <0.00%> (-0.01%)	⬇️

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Impacted Files	Coverage Δ
src/storage/src/table/cell_based_table.rs	71.24% <ø> (-0.43%)	⬇️
src/stream/src/from_proto/batch_query.rs	0.00% <0.00%> (ø)
src/meta/src/barrier/mod.rs	69.13% <0.00%> (-0.33%)	⬇️

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[xxchan]

It was confusing!