radv: Fix possible invalid free of dynamic descriptors

This free was left in after dynamic descriptors were changed to not be
allocated separately from the descriptor set, and can cause a crash.

Fixes: 39644fa40a3 ("radv: Don't allocate dynamic descriptors separately")
Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
1 file changed