chore(ingest): remove archived docs

[hsheth2]

Checklist

• The PR conforms to DataHub's Contributing Guideline (particularly Commit Message Format)
• Links to related issues (if applicable)
• Tests for the changes have been added/updated (if applicable)
• Docs related to the changes have been added/updated (if applicable). If a new feature has been added a Usage Guide has been added for the same.
• For any breaking change/potential downtime/deprecation/big changes an entry has been made in Updating DataHub

[github-actions]

Unit Test Results (metadata ingestion)

       8 files  ±0         8 suites  ±0   55m 8s ⏱️ - 1m 2s
   661 tests ±0     658 ✔️ ±0  3 💤 ±0  0 ❌ ±0 
1 322 runs  ±0  1 316 ✔️ ±0  6 💤 ±0  0 ❌ ±0 

Results for commit 9e3aa23. ± Comparison against base commit af1fc8d.

♻️ This comment has been updated with latest results.

[github-actions]

Unit Test Results (build & test)

517 tests  ±0   517 ✔️ ±0   8m 29s ⏱️ - 1m 19s
121 suites ±0       0 💤 ±0 
121 files   ±0       0 ❌ ±0 

Results for commit 9e3aa23. ± Comparison against base commit af1fc8d.

♻️ This comment has been updated with latest results.

[shirshanka]

LGTM