bc345281ab
if no restart indices are found, this draw must be discarded to avoid
crashing later on
Fixes: 583070748c ("util/primconvert: handle rewriting of prim-restart draws with unsupported primtype")
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13630>