BUILD: ssl: BoringSSL add EVP_PKEY_base_id

Remove EVP_PKEY_base_id compatibility, it is now included in BoringSSL.
diff --git a/include/common/openssl-compat.h b/include/common/openssl-compat.h
index 0e05649..6aa34fa 100644
--- a/include/common/openssl-compat.h
+++ b/include/common/openssl-compat.h
@@ -179,14 +179,6 @@
 #define __OPENSSL_110_CONST__
 #endif
 
-#ifdef OPENSSL_IS_BORINGSSL
-
-static inline int EVP_PKEY_base_id(EVP_PKEY *pkey)
-{
-	return EVP_PKEY_type(pkey->type);
-}
-#endif
-
 /* ERR_remove_state() was deprecated in 1.0.0 in favor of
  * ERR_remove_thread_state(), which was in turn deprecated in
  * 1.1.0 and does nothing anymore. Let's simply silently kill