defender: don't penalize redirects to the login page

This is normal behavior

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>

internal/httpd/api_shares.go

@@ -507,7 +507,6 @@ func (s *httpdServer) checkPublicShare(w http.ResponseWriter, r *http.Request, v
 	if share.Password != "" {
 		if isWebClient {
 			if err := s.checkWebClientShareCredentials(w, r, &share); err != nil {
-				handleDefenderEventLoginFailed(ipAddr, err) //nolint:errcheck
 				return share, nil, dataprovider.ErrInvalidCredentials
 			}
 		} else {