Drop unneeded code.

There is no need to react on every packet to mark a node as running. This
is updated on connection/disconnection, and it is sufficient.

neo/lib/connection.py

@@ -496,7 +496,6 @@ class Connection(BaseConnection):
         # process the network events with the last registered handler to
         # solve issues where a node is lost with pending handlers and
         # create unexpected side effects.
-        neo.lib.logging.debug('closing a connector for %r', self)
         handler = self._handlers.getLastHandler()
         super(Connection, self).close()
         if self._on_close is not None:

neo/master/handlers/identification.py

@@ -23,10 +23,6 @@ from . import MasterHandler
 
 class IdentificationHandler(MasterHandler):
 
-    def nodeLost(self, conn, node):
-        neo.lib.logging.warning(
-            'lost a node in IdentificationHandler : %s' % node)
-
     def requestIdentification(self, conn, node_type, uuid, address, name):
 
         self.checkClusterName(name)

neo/master/handlers/secondary.py

@@ -37,13 +37,6 @@ class SecondaryMasterHandler(MasterHandler):
 class PrimaryHandler(MasterHandler):
     """ Handler used by secondaries to handle primary master"""
 
-    def packetReceived(self, conn, packet, kw):
-        if not conn.isServer():
-            node = self.app.nm.getByAddress(conn.getAddress())
-            if not node.isBroken():
-                node.setRunning()
-        super(PrimaryHandler, self).packetReceived(conn, packet, kw)
-
     def connectionLost(self, conn, new_state):
         self.app.primary_master_node.setDown()
         raise PrimaryFailure, 'primary master is dead'
@@ -110,5 +103,3 @@ class PrimaryHandler(MasterHandler):
             app.name
         ))
 
-    def notifyClusterInformation(self, conn, state):
-        pass