Revert "TUN-6617: Dont fallback to http2 if QUIC conn was successful."

This reverts commit 679a89c7df.

connection/rpc.go

@@ -2,6 +2,7 @@ package connection
 
 import (
 	"context"
+	"fmt"
 	"io"
 	"net"
 	"time"
@@ -116,6 +117,9 @@ func (rsc *registrationServerClient) RegisterConnection(
 
 	observer.metrics.regSuccess.WithLabelValues("registerConnection").Inc()
 
+	observer.logServerInfo(connIndex, conn.Location, edgeAddress, fmt.Sprintf("Connection %s registered", conn.UUID))
+	observer.sendConnectedEvent(connIndex, conn.Location)
+
 	return conn, nil
 }