[otc/tools] b08754: Drop release-tools/README.md

[Richard Levitte]

  Branch: refs/heads/master
  Home:   https://github.openssl.org/otc/tools
  Commit: b08754e70922194418ec3ce11f08d9f912751f2f
      https://github.openssl.org/otc/tools/commit/b08754e70922194418ec3ce11f08d9f912751f2f
  Author: Richard Levitte <levitte at openssl.org>
  Date:   2022-06-10 (Fri, 10 Jun 2022)

  Changed paths:
    R release-tools/README.md

  Log Message:
  -----------
  Drop release-tools/README.md

We have HOWTO-make-a-release.md, which is a more up to date version of
the same information.

Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/tools/pull/118)