Kill modules/new/styles/forms.less

* Merge anon-warning styles into tooltip
* Separate out components form-actions and terms of use
	and preview
* Throw out some responsive styles which are not adding much value.

Note: The new files are small but I fully expect these to be generalised
in future.

Change-Id: Idb9ff05e1482883132b1234c0857b9ee24008ebe