Revert "Merge branch 'master' of https://www.github.com/acgh213/CALCOINS"

This reverts commit 9f19d01abe00e04a9e945fda012e6cd9d0eb5236, reversing
changes made to 6d66e64a34232369a05feae036effeaf43e7c51b.
Merge branch 'master' of https://github.com/acgh213/CALCOINS