chore(agw): valid printing and cleanup for fabfile AGW

[Neudrino]

Summary

• Normal Python print functions are not visible from within fabfile. Used the fab-specific commands instead.
• Simplified one useless method.

Test Plan

• CI

[github-actions]

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[github-actions]

feg-workflow

    2 files  203 suites   40s ⏱️
374 tests 374 ✔️ 0 💤 0 ❌
388 runs  388 ✔️ 0 💤 0 ❌

Results for commit 203d6a1.

[github-actions]

dp-workflow

14 tests   14 ✔️  2m 24s ⏱️
  1 suites    0 💤
  1 files      0 ❌

Results for commit 203d6a1.

[github-actions]

agw-workflow

615 tests   611 ✔️  3m 47s ⏱️
    2 suites      4 💤
    2 files        0 ❌

Results for commit 203d6a1.