chore(components): remove footer component

BREAKING CHANGE: the footer component is now removed

Author: joshblack

src/components/footer/README.md

@@ -123,7 +123,6 @@ $deprecations--message: 'Deprecated code was found, this code will be removed be
 //-------------------------------------
 // 🙈 Hidden (Not exposed on website)
 //-------------------------------------
-@import '../../components/footer/footer';
 
 // Cycle through all the deprecation reasons, if any exist, that have been
 // accumulated through the @import process.