[openssl/openssl] a6101a: remove unused Appveyour config

[Dmitry Misharov]

  Branch: refs/heads/openssl-3.0
  Home:   https://github.com/openssl/openssl
  Commit: a6101a3bf0f28011ae6fe692d0fd8ccecf4bdc03
      https://github.com/openssl/openssl/commit/a6101a3bf0f28011ae6fe692d0fd8ccecf4bdc03
  Author: Dmitry Misharov <dmitry at openssl.org>
  Date:   2023-09-11 (Mon, 11 Sep 2023)

  Changed paths:
    R appveyor.yml

  Log Message:
  -----------
  remove unused Appveyour config

Reviewed-by: Hugo Landau <hlandau at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22000)

(cherry picked from commit 8ac32e1e1b1a786366333acf897d332339610e6b)