changes as per review

event/network.go

+package event
+
+import "github.com/libp2p/go-libp2p-core/network"
+
+// EvtPeerConnectionStateChange should be emitted when we connect to a peer or disconnect
+// from a peer. It contains the network interface for the connection,
+// the connection handle & the new state of the connection.
+type EvtPeerConnectionStateChange struct {
+	Network    network.Network
+	Connection network.Conn
+	NewState   network.Connectedness
+}
+
+// EvtStreamStateChange should be emitted when we open a new stream with a peer or close an existing stream.
+// It contains the network interface for the connection, the stream handle &
+// the new state of the stream.
+type EvtStreamStateChange struct {
+	Network  network.Network
+	Stream   network.Stream
+	NewState network.Connectedness
+}

network/events.go

-package network
-
-// EvtPeerConnectionStateChange should be emitted when we connect/disconnect from a peer
-type EvtPeerConnectionStateChange struct {
-	Network    Network
-	Connection Conn
-	NewState   Connectedness
-}
-
-// EvtStreamStateChange is emitted when we open/close a stream with a peer
-type EvtStreamStateChange struct {
-	Network  Network
-	Stream   Stream
-	NewState Connectedness
-}

network/network.go

@@ -10,7 +10,6 @@ import (
 	"io"
 
 	"github.com/jbenet/goprocess"
-	"github.com/libp2p/go-libp2p-core/event"
 	"github.com/libp2p/go-libp2p-core/peer"
 	"github.com/libp2p/go-libp2p-core/peerstore"
 
@@ -101,11 +100,6 @@ type Network interface {
 
 	// Process returns the network's Process
 	Process() goprocess.Process
-
-	// EventBus returns the network's Event Bus
-	// we can subscribe to this bus to listen for connection/disconnection of peers,
-	// opening/closing of streams etc etc
-	EventBus() event.Bus
 }
 
 // Dialer represents a service that can dial out to peers