chore: Remove burn logs from Bank module

[mattverse]

Closes: https://github.com/osmosis-labs/osmosis/issues/4540

What is the purpose of the change

Removes Burn Logs from Bank module.

We have alot of incidences where we Burn coins, for example, whenever user exits a pool, it would burn the pool shares, triggering this log layer.

We also have future incidences where we will have multiples of simultaneous burns, e,g when we are migrating shares from one pool to other. This would cause log bombs in nodes as shown in the original issue.

This PR removes log bombs caused from burns.

Brief Changelog

• Remove burn logs from Bank module.

Testing and Verifying

This change does not need tests

Documentation and Release Note

• Does this pull request introduce a new feature or user-facing behavior changes? (yes / no)
• Is a relevant changelog entry added to the Unreleased section in CHANGELOG.md? (yes / no)
• How is the feature or change documented? (not applicable / specification (x/<module>/spec/) / Osmosis docs repo / not documented)

[czarcas7ic]

Is there any desire to keep this as a log but for debug mode only?

[mattverse]

@czarcas7ic yes definitely! Nice suggestion, changed!