don't compile compatibility code if openssl 1.1.1

libi2pd/ChaCha20.cpp

@@ -7,6 +7,8 @@
    Kovri go write your own code
 
  */
+
+#if LEGACY_OPENSSL
 namespace i2p
 {
 namespace crypto
@@ -144,4 +146,6 @@ void chacha20(uint8_t * buf, size_t sz, const uint8_t * nonce, const uint8_t * k
 }
 
 }
-}
+}
+#endif
+