nvk: Get rid of the tiled memory allocation helpers

These existed entirely to support shadow memory for VkImage cases where
we needed tiling.  Now that we have VM_BIND, these are no longer used so
we can drop the wrappers and just implement VkAllocate/FreeMemory again.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25357>
2 files changed