Remove dead code

Author: konradkonrad

rolling-shutter/keyper/fx/messagesender.go

@@ -31,34 +31,6 @@ type RemoteError struct {
 
 var _ IRetriable = &RemoteError{}
 
-type NonRetriableError struct {
-	Err error
-}
-
-func (*NonRetriableError) IsRetriable() bool {
-	return false
-}
-
-func (e *NonRetriableError) Error() string {
-	return e.Err.Error()
-}
-
-func (e *NonRetriableError) Unwrap() error {
-	return e.Err
-}
-
-var _ IRetriable = &NonRetriableError{}
-
-// IsRetriable checks if we should retry an action that resulted in the given error.
-func IsRetriable(err error) bool {
-	switch e := err.(type) {
-	case IRetriable:
-		return e.IsRetriable()
-	default:
-		return true
-	}
-}
-
 func (remoteError *RemoteError) Error() string {
 	return fmt.Sprintf("remote error: %s", remoteError.msg)
 }