Remove CSS support detection script
Remove old references to sticky elements
Remove newline
Merge pull request #3469 from guardian/remove-sticky-divs

Remove sticky code
Merge branch 'master' of github.com:guardian/frontend into remove-unused-detect-scripts

Conflicts:
	common/app/assets/javascripts/utils/detect.js
	common/test/assets/javascripts/spec/Detect.spec.js