remove short circuited healing optimization

[harshavardhana]

Description

remove short-circuited healing optimization

Motivation and Context

this healing optimization caused multiple
regressions in healing

• delete-markers incorrectly missing
  heal and returning incorrect healing
  results to the client.

• missing individual 'parts' such
  as for restored object or simply
  for all objects just missing few parts.

This optimization is not necessary, we
should proceed to verify all cases possible
not just when metadata is inconsistent.

How to test this PR?

All bigger objects simply delete their part.1 and
observe the healing doesn't heal this situation.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Optimization (provides speedup with no functional changes)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• Fixes a regression (If yes, please add commit-id or PR # here)
• Documentation updated
• Unit tests added/updated

[minio-trusted]

Mint Automation

Test	Result
mint-large-bucket.sh	✔️
mint-fs.sh	✔️
mint-gateway-s3.sh	✔️
mint-erasure.sh	✔️
mint-dist-erasure.sh	✔️
mint-zoned.sh	✔️
mint-gateway-nas.sh	✔️
mint-compress-encrypt-dist-erasure.sh	✔️
Deleting image on docker hub
Deleting image locally