[FIX] Don't show BTC addr. on cancel

[Jira RT-2196](https://ripplelabs.atlassian.net/browse/RT-2196)
[Bountysource](https://www.bountysource.com/issues/4270014-bitcoin-fund-flow-do-not-show-generated-btc-address-if-user-does-not-submit-password)

[![gif](http://g.recordit.co/3muBMnt9p8.gif)](http://recordit.co/3muBMnt9p8)