New backoff (#1153)

* new backoff function

* use backoff from util/backoff

* remove reset atemts

* change comment

* fmt

network/default.go

@@ -225,9 +225,6 @@ func (n *network) acceptNetConn(l tunnel.Listener, recv chan *message) {
 			sleep := backoff.Do(i)
 			log.Debugf("Network tunnel [%s] accept error: %v, backing off for %v", ControlChannel, err, sleep)
 			time.Sleep(sleep)
-			if i > 5 {
-				i = 0
-			}
 			i++
 			continue
 		}
@@ -255,10 +252,6 @@ func (n *network) acceptCtrlConn(l tunnel.Listener, recv chan *message) {
 			sleep := backoff.Do(i)
 			log.Debugf("Network tunnel [%s] accept error: %v, backing off for %v", ControlChannel, err, sleep)
 			time.Sleep(sleep)
-			if i > 5 {
-				// reset the counter
-				i = 0
-			}
 			i++
 			continue
 		}
@@ -1572,11 +1565,6 @@ func (n *network) connect() {
 		case <-time.After(time.Second + backoff.Do(attempts)):
 			// we have to try again
 			attempts++
-
-			// reset attempts 5 == ~2mins
-			if attempts > 5 {
-				attempts = 0
-			}
 		}
 	}
 }