Revert "Revert "Removed unused CSS file and deleted reference""

This reverts commit fe66612564d0aad61d6d8760859b1f64ac2c1725.
Revert "Revert "Revert "Removed unused CSS file and deleted reference"""

This reverts commit f4b6cc7cba3ad3ceffb7df1017a90c425e6b5e11.