These two stories showcased components that used React context and
Redux state that was not made available in the stories themselves. They
both crashed with an error when rendered in Storybook.
Instead of going through a great deal of effort to setup mocks for the
global Redux state and context, they have been removed. They are
perhaps the wrong layer for us to showcase in Storybook. Storybook is
more well suited for individual components that contain just UI logic.
A PropType error was shown in the console when on the Awaiting Swap
page in certain error scenarios. The `symbol` property was sometimes
not set if `destinationTokenInfo` was missing.
The `symbol` prop has been removed, as the `AwaitingSwap` component
already selected the `fetchParams`, and the `destinationTokenInfo`
object within. The prop was effectively a duplicate.
The `AwaitingSwap` component was emitting a React warning when rendered
because a component was being rendered in an array without having a
`key` prop set.
A key has been added to the `CountdownTimer` component, which is passed
into the translation helper in an array. The warning no longer appears.
* Only format timeRemaining if in useTransactionTimeRemaining if it is truthy
* Only setTimeRemaining in useTransactionTimeRemaining if submitted time is a number
* Use isSubmitted as a check, instead of isPending and submittedTime, before calculating timeRemaining