fix: remove unused crypto unit fields

migrations/1658940716689-remove-coin-specific-cryptounits.js

@@ -0,0 +1,22 @@
+const { removeFromConfig, loadLatest } = require('../lib/new-settings-loader')
+const { getCryptosFromWalletNamespace } = require('../lib/new-config-manager.js')
+const _ = require('lodash/fp')
+
+exports.up = function (next) {
+  loadLatest()
+    .then(settings => {
+      const configuredCryptos = getCryptosFromWalletNamespace(settings.config)
+      if (!configuredCryptos.length) return Promise.resolve()
+
+      return removeFromConfig(_.map(it => `wallets_${it}_cryptoUnits`, configuredCryptos))
+    })
+    .then(() => next())
+    .catch(err => {
+      console.log(err.message)
+      return next(err)
+    })
+}
+
+exports.down = function (next) {
+  next()
+}