chore: remove files replaced by monorepo, add required files

[taran-a]

Explanation

Removed files: .depcheckrc.json, .prettierignore
Added files: LICENSE.APACHE2, LICENSE.MIT0

References

• Related to WPN-1320

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

The base branch was changed.

[mikesposito]

We should apply the same license we have for packages on https://github.com/MetaMask/core (i.e. MIT), dropping MIT0 and Apache2

[taran-a]

We should apply the same license we have for packages on https://github.com/MetaMask/core (i.e. MIT), dropping MIT0 and Apache2

@mikesposito I updated, please take a look. For the bitcoin snap I used 2022 year as it was in the source repo file. At the same time in the source repo a company was ConsenSys Software Inc. when in the core repo a company is "MetaMask"