[AutoParallel] Remove dynamic pipeline import adaption

[waliwali777]

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# Install and register `pre-commit` in the project folder
pip install pre-commit && pre-commit install

# Process previous code files separately
pre-commit run --file XXXX.py

• Add test cases into tests folder. If there are codecov issues, please add tests cases first.

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Description

动半 pp 的支持已发布在 paddle 3.1 版本中，将移除之前添加的 import try catch
参考链接：
llama 动半 pp 支持：#10753
gpt 动半 pp 支持：#10759

[paddle-bot]

Thanks for your contribution!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 46.74%. Comparing base (8fd74f0) to head (20d7ea4).
Report is 14 commits behind head on develop.

❌ Your project check has failed because the head coverage (46.74%) is below the target coverage (58.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #10795      +/-   ##
===========================================
- Coverage    46.77%   46.74%   -0.03%     
===========================================
  Files          802      802              
  Lines       133646   133719      +73     
===========================================
+ Hits         62507    62511       +4     
- Misses       71139    71208      +69     

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