refactor!: KeyringController always derives encryption key

Author: mikesposito

packages/keyring-controller/CHANGELOG.md

@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - **BREAKING:** The `KeyringController` constructor options now require an encryptor ([#7127](https://github.com/MetaMask/core/pull/7127))
   - The `encryptor` constructor option was previously optional and defaulted to an instance of `@metamask/browser-passworder`.
 - **BREAKING:** The `GenericEncryptor` and `ExportableKeyEncryptor` types have been merged into a single `Encryptor` type ([#7127](https://github.com/MetaMask/core/pull/7127))
+- **BREAKING:** The `Encryptor` type requires `exportKey`, `keyFromPassword` and `generateSalt` methods ([#7127](https://github.com/MetaMask/core/pull/7127))
 
 ### Removed
 

packages/keyring-controller/jest.config.js

@@ -17,10 +17,10 @@ module.exports = merge(baseConfig, {
   // An object that configures minimum threshold enforcement for coverage results
   coverageThreshold: {
     global: {
-      branches: 94.03,
+      branches: 93.83,
       functions: 100,
-      lines: 98.31,
-      statements: 98.33,
+      lines: 98.12,
+      statements: 98.14,
     },
   },