"Remove a host of unnecessary OPENSSL_IS_BORINGSSL ifdefs" breaks build on older OSs.

[Ben Greear]

Hello David,

This patch is breaking compile on Fedora-24 and earlier (due to older openssl).

Does this patch actually help anything, or is it just code cleanup?

commit faf9c04cb51c9c1b5f2a4599c57e6ba44f6d2428
Author: David Benjamin <davidben at google.com>
Date:   Mon Jun 13 12:22:05 2022 -0400

     Remove a host of unnecessary OPENSSL_IS_BORINGSSL ifdefs

     The <openssl/buf.h> include is relevant in both OpenSSL and BoringSSL
     because the file uses BUF_MEM (include what you use). OpenSSL just
     happened to include it via another file. OpenSSL also spells it
     <openssl/buffer.h>, not matching the type, so use the compatible
     spelling.

     Additionally all the CHECKED_CAST and manual STACK_OF(T) definitions
     call into BoringSSL internals. The correct, public APIs are simply to
     just use the same code as OpenSSL and call the DEFINE_STACK_OF macros.

     Signed-off-by: David Benjamin <davidben at google.com>

Thanks,
Ben

-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com