refactor(binding): rm redundant code and perf

[xiaost]

What type of PR is this?

refactor

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[codecov[bot]]

Codecov Report

:x: Patch coverage is 79.75543% with 149 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 79.20%. Comparing base (6e07744) to head (624e5c6). :warning: Report is 13 commits behind head on develop.

Files with missing lines	Patch %	Lines
...p/server/binding/internal/decoder/decoder_slice.go	61.95%	28 Missing and 7 partials :warning:
.../server/binding/internal/decoder/decoder_struct.go	67.70%	19 Missing and 12 partials :warning:
...pp/server/binding/internal/decoder/decoder_file.go	62.71%	16 Missing and 6 partials :warning:
...pp/server/binding/internal/decoder/decoder_base.go	87.82%	11 Missing and 3 partials :warning:
...ver/binding/internal/decoder/decoder_customfunc.go	66.66%	7 Missing and 4 partials :warning:
...app/server/binding/internal/decoder/decoder_map.go	55.00%	6 Missing and 3 partials :warning:
pkg/app/server/binding/internal/decoder/tag.go	78.57%	8 Missing and 1 partial :warning:
pkg/app/server/binding/internal/decoder/field.go	94.01%	5 Missing and 2 partials :warning:
pkg/app/server/binding/internal/decoder/decoder.go	72.72%	4 Missing and 2 partials :warning:
pkg/app/server/binding/internal/decoder/getter.go	90.32%	2 Missing and 1 partial :warning:
... and 1 more

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1318      +/-   ##
===========================================
+ Coverage    74.11%   79.20%   +5.09%     
===========================================
  Files          145      145              
  Lines        16953    16560     -393     
===========================================
+ Hits         12564    13117     +553     
+ Misses        3796     2810     -986     
- Partials       593      633      +40     

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[FlameMida]

是否有计划支持 go-playground/validator 的翻译器和自定义验证函数呢