[PATCH] ecc: Simplify signature code

[NIIBE Yutaka]

Tianjia Zhang <tianjia.zhang at linux.alibaba.com> wrote:
> * cipher/ecc-gost.c (_gcry_ecc_gost_sign): Use implemented function.
> * cipher/ecc.c (ecc_verify): Remove redundant code.

Thanks.  Applied.
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