fix: delete unused include from codec/codec.h

[kayverly]

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

• Deleted the unused include from codec/codec.h

• What is the current behavior? (You can also link to an open issue here)
  Delete unused include from codec/codec.h #2076 (comment)

• What is the new behavior (if this is a feature change)?
  Should be the same just cleaner code

[codecov]

Codecov Report

Merging #2079 (04b01bb) into main (a8f8c91) will decrease coverage by 0.02%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main    #2079      +/-   ##
============================================
- Coverage     75.72%   75.69%   -0.03%     
  Complexity      347      347              
============================================
  Files           615      615              
  Lines        116901   116901              
  Branches       1015     1015              
============================================
- Hits          88523    88488      -35     
- Misses        28169    28204      +35     
  Partials        209      209              

Impacted Files	Coverage Δ
src/codec/codec.h	100.00% <ø> (ø)
src/log/status.h	70.83% <0.00%> (-12.50%)	⬇️
src/replica/replicate_node.cc	74.30% <0.00%> (-3.92%)	⬇️
src/sdk/db_sdk.cc	63.90% <0.00%> (-2.70%)	⬇️
src/log/log_reader.cc	76.47% <0.00%> (-2.65%)	⬇️
src/zk/dist_lock.cc	81.81% <0.00%> (-1.52%)	⬇️
src/catalog/client_manager.cc	42.20% <0.00%> (-0.29%)	⬇️
hybridse/src/codec/fe_row_codec.cc	78.49% <0.00%> (-0.16%)	⬇️
src/tablet/tablet_impl.cc	60.09% <0.00%> (-0.10%)	⬇️
hybridse/src/vm/runner.cc	67.73% <0.00%> (-0.04%)	⬇️
... and 2 more

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[github-actions]

SDK Test Report

  75 files    75 suites   5m 21s ⏱️
163 tests 161 ✔️ 2 💤 0 ❌
204 runs  202 ✔️ 2 💤 0 ❌

Results for commit 04b01bb.

[github-actions]

Linux Test Report

       54 files       196 suites   52m 6s ⏱️
  9 008 tests   9 004 ✔️ 4 💤 0 ❌
13 259 runs  13 255 ✔️ 4 💤 0 ❌

Results for commit 04b01bb.

[tobegit3hub]

LGTM