core: remove introspection package

core/host/host.go

@@ -8,7 +8,6 @@ import (
 
 	"github.com/libp2p/go-libp2p/core/connmgr"
 	"github.com/libp2p/go-libp2p/core/event"
-	"github.com/libp2p/go-libp2p/core/introspection"
 	"github.com/libp2p/go-libp2p/core/network"
 	"github.com/libp2p/go-libp2p/core/peer"
 	"github.com/libp2p/go-libp2p/core/peerstore"
@@ -74,16 +73,3 @@ type Host interface {
 	// EventBus returns the hosts eventbus
 	EventBus() event.Bus
 }
-
-// IntrospectableHost is implemented by Host implementations that are
-// introspectable, that is, that may have introspection capability.
-type IntrospectableHost interface {
-	// Introspector returns the introspector, or nil if one hasn't been
-	// registered. With it, the call can register data providers, and can fetch
-	// introspection data.
-	Introspector() introspection.Introspector
-
-	// IntrospectionEndpoint returns the introspection endpoint, or nil if one
-	// hasn't been registered.
-	IntrospectionEndpoint() introspection.Endpoint
-}