Inlining review and fact check activity fields

www.agileplannerapp.com/boards/173808/cards/5629

... with edition form. these were left out earlier,
causing review activities to not save edition changes.

part of a larger change:

https://github.com/alphagov/publisher/pull/251
Removing unnecessary template

this template is not being used anywhere. instead
shared/_review gets rendered. looks like it was
left behind when common templates were moved to
the shared folder.
Fix tests failing due to overlapping elements

Poltergeist is seeing '.help-block' overlapping
the 'Save' button, hence can't click it without
a `.trigger('click')` on that element.

This needs to be followed by an assertion that
waits for the edition to get saved, or else
capybara jumps to the next statement.