* Delete CachedBalancesController.cachedBalances
* Migrate provider to Rinkeby instead of deleting it
* Convert hex transaction metamaskNetworkId values to decimal
* Don't migrate provider state in e2e tests
* Don't kick custom RPC users to Rinkeby unnecessarily
* Use provider.chainId for address book chainId values
* Add address book migration
* Fix failing unit test
* fixup! Merge branch 'develop' into address-book-use-chainId
* Select address book entries for display by chainId
* Merge all address book entry keys
* fixup! Merge all address book entry keys