Clean up weirdness in initializing EC_GROUP cofactor & order.

Previously, |x| was reset to the value of the cofactor for no reason,
and there was an unnecessary copy made of |order|.

Change-Id: Ib6b06f651e280838299dff534c38726ebf4ccc97
Reviewed-on: https://boringssl-review.googlesource.com/4447
Reviewed-by: Adam Langley <agl@google.com>
1 file changed