Fix broken quantization tutorial links

[patrocinio]

• Updated redirects for dynamic_quantization_tutorial.html to point to gpu_quantization_torchao_tutorial
• Updated redirects for static_quantization_tutorial.html to point to pytorch.org/ao documentation
• Removed missing dynamic_quantization recipe from recipes_index.rst
• Updated recipes README to remove reference to missing dynamic_quantization.py

Fixes issue #3583

Description

Checklist

• The issue that is being fixed is referred in the description (see above "Fixes #ISSUE_NUMBER")
• Only one issue is addressed in this pull request
• Labels from the issue that this PR is fixing are added to this pull request
• No unnecessary issues are included into this pull request.

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/tutorials/3670

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

❌ 1 New Failure

As of commit b6ed9a5 with merge base 7f8b6dc ():

NEW FAILURE - The following job has failed:

• link check on PR / linkChecker (gh)
  Process completed with exit code 1.

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