remove OFAC addresses

[tacolopo]

What is the purpose of the change

This deletes all OFAC blocked addresses. Osmosis should remain permissionless, and preemptive compliance is especially heinous. This precedent is in direct opposition to the philosophical underpinnings of decentralized applications.

Brief Changelog

• Delete OFAC addresses
• Delete and replace associated comment
• Initial goal was to remove the entire file and all associated code, but ran into refactorings and functionality would still exist from SDK. Simple implementation = better.

Testing and Verifying

This change simply removes strings, passes tests in fork.

Documentation and Release Note

• Does this pull request introduce a new feature or user-facing behavior changes? no
• Is a relevant changelog entry added to the Unreleased section in CHANGELOG.md? no
• How is the feature or change documented? In comments of file.