Revert "Add an error log to debug errors on the ci test"

This reverts commit af42e04.

association.go

@@ -507,8 +507,6 @@ func (a *Association) closeAllTimers() {
 
 func (a *Association) readLoop() {
 	var closeErr error
-
-	a.log.Debugf("[%s] readLoop entered", a.name)
 	defer func() {
 		// also stop writeLoop, otherwise writeLoop can be leaked
 		// if connection is lost when there is no writing packet.
@@ -528,14 +526,9 @@ func (a *Association) readLoop() {
 		a.log.Debugf("[%s] stats nT3Timeouts : %d", a.name, a.stats.getNumT3Timeouts())
 		a.log.Debugf("[%s] stats nAckTimeouts: %d", a.name, a.stats.getNumAckTimeouts())
 		a.log.Debugf("[%s] stats nFastRetrans: %d", a.name, a.stats.getNumFastRetrans())
-
-		if errors.Is(closeErr, net.ErrClosed) || errors.Is(closeErr, io.EOF) {
-			a.log.Debugf("[%s] readLoop exited %s", a.name, closeErr)
-		} else {
-			a.log.Errorf("[%s] readLoop exited %s", a.name, closeErr)
-		}
 	}()
 
+	a.log.Debugf("[%s] readLoop entered", a.name)
 	buffer := make([]byte, receiveMTU)
 
 	for {
@@ -556,6 +549,8 @@ func (a *Association) readLoop() {
 			break
 		}
 	}
+
+	a.log.Debugf("[%s] readLoop exited %s", a.name, closeErr)
 }
 
 func (a *Association) writeLoop() {