Revert "Merge pull request #4089 from guardian/redux-fronts-respect-grouping-news"

This reverts commit 30e8d71344223f9a42ce4f395dd7183f38192e9c, reversing
changes made to 8746130ada56fb5f6857f52391e70815b2233f9e.
Merge pull request #4109 from guardian/revert-redux-fronts-respect-grouping-news

Revert "Merge pull request #4089 from guardian/redux-fronts-respect-grouping-news