remove redundant computation from Jacobi test

[omershlo]

class/src/primitives/cl_dl_lcm.rs

Lines 541 to 543 in 2a8fa3b

	fn two_over(n: &BigInt) -> i8 {
	if n.mod_floor(&BigInt::from(8)) == BigInt::one()
	|| n.mod_floor(&BigInt::from(8)) == BigInt::from(7)

modulo is computed twice.