Remove redundant styles
Remove redundant styles

Some styles support HTML no longer in use so remove. Duplicate blocks
also existed so refactored.

kalleth/static,robinwhittleton/static,alphagov/static,kalleth/static,alphagov/static,kalleth/static,robinwhittleton/static,robinwhittleton/static,kalleth/static,tadast/static,tadast/static,alphagov/static,robinwhittleton/static,tadast/static,tadast/static