Merge bitcoin#20131: test: Remove unused nVersion=1 in p2p tests

faad92f test: Remove unused nVersion=1 in p2p tests (MarcoFalke)

Pull request description:

  After commit ddefb5c nVersion is no
  longer used in p2p logic when sending messages. Only when receiving
  messages, but in this test no messages are received.

ACKs for top commit:
  laanwj:
    Code review ACK faad92f
  fanquake:
    ACK faad92f

Tree-SHA512: 9a7029187aaa5a7929a4a2199646131ff1ea72df6a855ce7022dd3bb2647dd525356dbc5e460c77007eebcdeab400a689db8cb77e8239af3b539c117a4e0d16e

src/test/denialofservice_tests.cpp

@@ -85,7 +85,6 @@ BOOST_AUTO_TEST_CASE(outbound_slow_chain_eviction)
     dummyNode1.SetSendVersion(PROTOCOL_VERSION);
 
     peerLogic->InitializeNode(&dummyNode1);
-    dummyNode1.nVersion = 1;
     dummyNode1.fSuccessfullyConnected = true;
 
     // This test requires that we have a chain with non-zero work.
@@ -139,7 +138,6 @@ static void AddRandomOutboundPeer(std::vector<CNode *> &vNodes, PeerLogicValidat
     node.SetSendVersion(PROTOCOL_VERSION);
 
     peerLogic.InitializeNode(&node);
-    node.nVersion = 1;
     node.fSuccessfullyConnected = true;
 
     connman->AddNode(node);
@@ -228,7 +226,6 @@ BOOST_AUTO_TEST_CASE(DoS_banning)
     CNode dummyNode1(id++, NODE_NETWORK, 0, INVALID_SOCKET, addr1, 0, 0, CAddress(), "", true);
     dummyNode1.SetSendVersion(PROTOCOL_VERSION);
     peerLogic->InitializeNode(&dummyNode1);
-    dummyNode1.nVersion = 1;
     dummyNode1.fSuccessfullyConnected = true;
     {
         LOCK(cs_main);
@@ -245,7 +242,6 @@ BOOST_AUTO_TEST_CASE(DoS_banning)
     CNode dummyNode2(id++, NODE_NETWORK, 0, INVALID_SOCKET, addr2, 1, 1, CAddress(), "", true);
     dummyNode2.SetSendVersion(PROTOCOL_VERSION);
     peerLogic->InitializeNode(&dummyNode2);
-    dummyNode2.nVersion = 1;
     dummyNode2.fSuccessfullyConnected = true;
     {
         LOCK(cs_main);
@@ -333,7 +329,6 @@ BOOST_AUTO_TEST_CASE(DoS_bantime)
     CNode dummyNode(id++, NODE_NETWORK, 0, INVALID_SOCKET, addr, 4, 4, CAddress(), "", true);
     dummyNode.SetSendVersion(PROTOCOL_VERSION);
     peerLogic->InitializeNode(&dummyNode);
-    dummyNode.nVersion = 1;
     dummyNode.fSuccessfullyConnected = true;
 
     {