tests: Reduce compilation time and unneccessary recompiles by removing unused includes in tests

src/test/net_tests.cpp

@@ -1,16 +1,19 @@
 // Copyright (c) 2012-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <addrdb.h>
 #include <addrman.h>
+#include <clientversion.h>
 #include <test/setup_common.h>
 #include <string>
 #include <boost/test/unit_test.hpp>
-#include <hash.h>
 #include <serialize.h>
 #include <streams.h>
 #include <net.h>
 #include <netbase.h>
 #include <chainparams.h>
+#include <util/memory.h>
 #include <util/system.h>
 
 #include <memory>