refactor: replace RecursiveMutex g_maplocalhost_mutex with Mutex

Author: w0xlt

src/net.cpp

@@ -112,7 +112,7 @@ static const uint64_t RANDOMIZER_ID_ADDRCACHE = 0x1cf2e4ddd306dda9ULL; // SHA256
 //
 bool fDiscover = true;
 bool fListen = true;
-RecursiveMutex g_maplocalhost_mutex;
+Mutex g_maplocalhost_mutex;
 std::map<CNetAddr, LocalServiceInfo> mapLocalHost GUARDED_BY(g_maplocalhost_mutex);
 static bool vfLimited[NET_MAX] GUARDED_BY(g_maplocalhost_mutex) = {};
 std::string strSubVersion;

src/net.h

@@ -230,7 +230,7 @@ struct LocalServiceInfo {
     uint16_t nPort;
 };
 
-extern RecursiveMutex g_maplocalhost_mutex;
+extern Mutex g_maplocalhost_mutex;
 extern std::map<CNetAddr, LocalServiceInfo> mapLocalHost GUARDED_BY(g_maplocalhost_mutex);
 
 extern const std::string NET_MESSAGE_COMMAND_OTHER;