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metamask-extension/app/scripts/migrations/036.js

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import { cloneDeep } from 'lodash'
const version = 36
/**
* The purpose of this migration is to remove the {@code privacyMode} feature flag.
*/
export default {
version,
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async migrate(originalVersionedData) {
const versionedData = cloneDeep(originalVersionedData)
versionedData.meta.version = version
const state = versionedData.data
versionedData.data = transformState(state)
return versionedData
},
}
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function transformState(state) {
const { PreferencesController } = state
if (PreferencesController) {
const featureFlags = PreferencesController.featureFlags || {}
if (typeof featureFlags.privacyMode !== 'undefined') {
delete featureFlags.privacyMode
}
}
return state
}