utils/curve25519.sage: Remove second definition of `A0'.

diff --git a/utils/curve25519.sage b/utils/curve25519.sage
index 24e74b1..f5375a7 100644 (file)
--- a/utils/curve25519.sage
+++ b/utils/curve25519.sage
@@ -222,8 +222,6 @@ assert 5*quosqrt(k(4), k(5))^2 == 4
 ###--------------------------------------------------------------------------
 ### The Montgomery ladder.
 
-A0 = (A - 2)/4
-
 def x25519(n, x1):
 
   ## Let Q = (x_1 : y_1 : 1) be an input point.  We calculate