Revert "MDEV-23925: Fixed warnings generated during compilation of mysys_ssl/openssl.c on MacOS"

This reverts commit a1b6691f.

because #ifdef checks the symbol defined in ssl_compat.h,
so #include <ssl_compat.h> cannot be inside #ifdef

mysys_ssl/openssl.c

@@ -15,6 +15,7 @@
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
 
 #include <my_global.h>
+#include <ssl_compat.h>
 
 /*
   The check is only done for OpenSSL 1.1.x.
@@ -24,14 +25,12 @@
 */
 
 #ifndef HAVE_OPENSSL11
-#include <ssl_compat.h>
 int check_openssl_compatibility()
 {
   return 0;
 }
 #else
 #include <openssl/evp.h>
-#include <ssl_compat.h>
 
 static uint testing;
 size_t alloc_size, alloc_count;