Refactored array_size to make it always constexpr

src/stratum_server.h

@@ -156,7 +156,7 @@ private:
 
 	time_t m_apiLastUpdateTime;
 
-	void update_hashrate_data(uint64_t target, time_t timestamp);
+	void update_hashrate_data(uint64_t hashes, time_t timestamp);
 	void api_update_local_stats(time_t timestamp);
 };