fix: delete unused files(4paradigm#1986)

[fpetrakov]

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

This change resolves #1986 by deleting unused files

• What is the current behavior? (You can also link to an open issue here)

• What is the new behavior (if this is a feature change)?

[codecov]

Codecov Report

Merging #1994 (89daab6) into main (74217a9) will increase coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main    #1994   +/-   ##
=========================================
  Coverage     75.62%   75.62%           
  Complexity      347      347           
=========================================
  Files           614      612    -2     
  Lines        116995   116945   -50     
  Branches       1022     1022           
=========================================
- Hits          88474    88440   -34     
+ Misses        28312    28296   -16     
  Partials        209      209           

Impacted Files	Coverage Δ
src/storage/mem_table_snapshot.cc	63.46% <ø> (ø)
src/rpc/rpc_client.h	85.13% <0.00%> (-4.06%)	⬇️
src/zk/dist_lock.cc	81.81% <0.00%> (-1.52%)	⬇️
src/zk/zk_client.cc	83.11% <0.00%> (-0.26%)	⬇️
src/client/tablet_client.cc	55.19% <0.00%> (-0.23%)	⬇️
src/tablet/tablet_impl.cc	59.35% <0.00%> (-0.08%)	⬇️
src/nameserver/name_server_impl.cc	42.80% <0.00%> (ø)
hybridse/src/codec/fe_row_codec.cc	78.64% <0.00%> (+0.15%)	⬆️
src/catalog/client_manager.cc	42.49% <0.00%> (+0.28%)	⬆️
src/sdk/db_sdk.cc	63.90% <0.00%> (+0.44%)	⬆️
... and 4 more

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[github-actions]

SDK Test Report

  75 files    75 suites   8m 33s ⏱️
163 tests 161 ✔️ 2 💤 0 ❌
204 runs  202 ✔️ 2 💤 0 ❌

Results for commit 89daab6.

♻️ This comment has been updated with latest results.

[github-actions]

Linux Test Report

       56 files       195 suites   55m 1s ⏱️
  8 958 tests   8 954 ✔️ 4 💤 0 ❌
13 184 runs  13 180 ✔️ 4 💤 0 ❌

Results for commit 89daab6.

♻️ This comment has been updated with latest results.