Revert "[II] fix(mtp): skip missing fused indexer shard when EXL3 keeps projections split"

[lukealonso]

Reverts #423

Summary by CodeRabbit

• Bug Fixes
  • Improved DeepSeek model weight loading by ensuring eligible projection mappings continue through the standard loading process.
  • Removed obsolete fallback behavior and related test coverage.

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Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: bb14b44a-71b0-4ee9-a451-42a57412b642

📥 Commits

Reviewing files that changed from the base of the PR and between c951fde and 4a58cab.

📒 Files selected for processing (2)

• tests/models/test_deepseek_mtp_mxfp8_loader.py
• vllm/model_executor/models/deepseek_mtp.py

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📝 Walkthrough

Walkthrough

The DeepSeek MTP loader no longer skips wk_weights_proj mappings when the mapped parameter is absent. The test module removes the unused import and the fallback-loading test.

Changes

DeepSeek MTP loader cleanup

Layer / File(s)	Summary
Loader mapping and fallback test cleanup vllm/model_executor/models/deepseek_mtp.py, tests/models/test_deepseek_mtp_mxfp8_loader.py	The loader allows absent wk_weights_proj mappings to continue through weight-loading logic. The test module removes the unused DeepSeekMTP import and the fallback-loading test.

Estimated code review effort: 2 (Simple) | ~10 minutes

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch revert-423-pr-ii/mtp-exl3-split-indexer-guard

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