[net/refactor] Remove m_manual_connection flag from CNode

src/net.h

@@ -777,7 +777,6 @@ public:
     bool m_legacyWhitelisted{false};
     bool fFeeler{false}; // If true this node is being used as a short lived feeler.
     bool m_addr_fetch{false};
-    bool m_manual_connection{false};
     bool fClient{false}; // set by version message
     bool m_limited_node{false}; //after BIP159, set by version message
     const bool fInbound;
@@ -793,6 +792,10 @@ public:
     std::atomic_bool fPauseRecv{false};
     std::atomic_bool fPauseSend{false};
 
+    bool IsManualConn() const {
+        return m_conn_type == ConnectionType::MANUAL;
+    }
+
 protected:
     mapMsgCmdSize mapSendBytesPerMsgCmd;
     mapMsgCmdSize mapRecvBytesPerMsgCmd GUARDED_BY(cs_vRecv);