zink: don't block large vram allocations

I think this was masking some other problem that has long since been fixed

cc: mesa-stable

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25893>

src/gallium/drivers/zink/zink_bo.c

@@ -256,10 +256,6 @@ bo_create_internal(struct zink_screen *screen,
    struct zink_bo *bo = NULL;
    bool init_pb_cache;
 
-   /* too big for vk alloc */
-   if (size > UINT32_MAX)
-      return NULL;
-
    alignment = get_optimal_alignment(screen, size, alignment);
 
    VkMemoryAllocateFlagsInfo ai;