The <openssl/hmac.h> header was unused and including the
header might cause build failure when OpenSSL doesn't have
Engines support enabled.
See https://fedoraproject.org/wiki/Changes/OpensslDeprecateEngine
Removes unused hmac includes after Remove OpenSSL Engine support
(commit
ef7aba70726cff9afaaa8c7054098f84087ccf84) removed engine
support.
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/evp.h>
-#include <openssl/hmac.h>
#include <openssl/opensslv.h>
#include <openssl/ssl.h>
#include <openssl/crypto.h>
#include <openssl/evp.h>
-#include <openssl/hmac.h>
#include <openssl/opensslv.h>
#include <openssl/ssl.h>