Remove migration of old(pre 0.19) adapters on manager

[Buckram123]

Don't think anyone still using that old adapters

Checklist

• CI is green.
• Changelog updated.

[cloudflare-workers-and-pages]

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View logs

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.3%. Comparing base (21e55ad) to head (ab0b90a).
Report is 257 commits behind head on main.

Additional details and impacted files

Files	Coverage Δ
...ramework/contracts/account/manager/src/commands.rs	95.8% <100.0%> (+0.6%)	⬆️
...ramework/contracts/account/manager/src/contract.rs	98.3% <ø> (+0.2%)	⬆️
framework/packages/abstract-adapter/src/lib.rs	85.1% <ø> (-11.6%)	⬇️
...ramework/packages/abstract-std/src/core/manager.rs	90.9% <ø> (ø)

... and 190 files with indirect coverage changes