Revert "add cyclotomic as dep."
Revert "add cyclotomic as dep."

This reverts commit d9d81558c964bb455a792b5d3b86efe5300af83f.
This turns out to be unnessary,
plus cyclotomic does not support
sqrt, which is needed for my formula.

Javran/Project-Euler,Javran/Project-Euler