refactor: delete functions in src/codec/schema_codec.h

[KikiDotPy]

Removed

GetSchemaData,
GetCdColumns and
GetSize

functions in src/codec/schema_codec.h as requested in issue #2097

[codecov]

Codecov Report

Merging #2100 (b6b7783) into main (964a9b9) will increase coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main    #2100   +/-   ##
=========================================
  Coverage     75.79%   75.80%           
  Complexity      347      347           
=========================================
  Files           615      615           
  Lines        116921   116921           
  Branches       1015     1015           
=========================================
+ Hits          88623    88631    +8     
+ Misses        28089    28081    -8     
  Partials        209      209           

Impacted Files	Coverage Δ
src/codec/schema_codec.h	82.69% <ø> (ø)
src/schema/schema_adapter.cc	42.59% <0.00%> (-0.31%)	⬇️
src/tablet/tablet_impl.cc	61.10% <0.00%> (-0.20%)	⬇️
hybridse/src/codec/fe_row_codec.cc	78.33% <0.00%> (-0.16%)	⬇️
src/storage/mem_table.cc	89.38% <0.00%> (-0.14%)	⬇️
src/sdk/sql_cluster_router.cc	55.00% <0.00%> (-0.13%)	⬇️
src/client/tablet_client.cc	55.92% <0.00%> (-0.12%)	⬇️
src/nameserver/name_server_impl.cc	42.80% <0.00%> (+0.13%)	⬆️
src/catalog/tablet_catalog.cc	71.58% <0.00%> (+0.80%)	⬆️
.../query_response_time/deploy_query_response_time.cc	100.00% <0.00%> (+2.89%)	⬆️
... and 3 more

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[github-actions]

SDK Test Report

  75 files    75 suites   5m 34s ⏱️
163 tests 161 ✔️ 2 💤 0 ❌
204 runs  202 ✔️ 2 💤 0 ❌

Results for commit b6b7783.

[github-actions]

Linux Test Report

       54 files       196 suites   52m 52s ⏱️
  9 009 tests   9 005 ✔️ 4 💤 0 ❌
13 260 runs  13 256 ✔️ 4 💤 0 ❌

Results for commit b6b7783.