Remove cpp_info.name for OpenSSL

[uilianries]

Specify library name and version: openssl/all

Related issue: conan-io/conan#6269 (comment)

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the
  conan-center hook activated.

[conan-center-bot]

All green in build 1 (eef5c9259ca458b06510db493e008f67e6090b52)! 😊

• openssl/1.0.2s: Generated 82 packages. All logs here
• openssl/1.0.2t: Generated 82 packages. All logs here
• openssl/1.1.0k: Generated 82 packages. All logs here
• openssl/1.1.0l: Generated 82 packages. All logs here
• openssl/1.1.1c: Generated 82 packages. All logs here
• openssl/1.1.1d: Generated 82 packages. All logs here