Update lib/h5bp-htaccess

Removed redundant duplication comment. Just a tiny a tiny thing
Merge pull request #694 from adam-lynch/patch-2

Update lib/h5bp-htaccess
Merge commit '7d37b885625b4ea6510ae6ace563abb67cb9aa11'
Merge commit '68f41bd77d08623e98c36837a01f44dbaf1c4439'