Invert error check after lint

tempodb/blocklist/poller.go

@@ -491,7 +491,7 @@ func (p *Poller) deleteTenant(ctx context.Context, tenantID string) error {
 	// If we have any error other than that which indicates that the tenant index
 	// call was made successfully, and that it does not exist, do nothing.  Only
 	// proceed if we know that the index does not exist.
-	if errors.Is(err, backend.ErrDoesNotExist) {
+	if !errors.Is(err, backend.ErrDoesNotExist) {
 		return nil
 	}