get rid of debugging code

p2p/net/mock/mock_conn.go

@@ -2,12 +2,7 @@ package mocknet
 
 import (
 	"container/list"
-	"fmt"
-	"os"
-	"os/signal"
-	"runtime"
 	"sync"
-	"syscall"
 
 	process "github.com/jbenet/goprocess"
 	ic "github.com/libp2p/go-libp2p-crypto"
@@ -16,19 +11,6 @@ import (
 	ma "github.com/multiformats/go-multiaddr"
 )
 
-func init() {
-	go func() {
-		sigs := make(chan os.Signal, 1)
-		signal.Notify(sigs, syscall.SIGQUIT)
-		buf := make([]byte, 1<<20)
-		for {
-			<-sigs
-			stacklen := runtime.Stack(buf, true)
-			fmt.Printf("=== received SIGQUIT ===\n*** goroutine dump...\n%s\n*** end\n", buf[:stacklen])
-		}
-	}()
-}
-
 // conn represents one side's perspective of a
 // live connection between two peers.
 // it goes over a particular link.