vkr: remove some manual NULL checks

They are checked by the decoder since ee9db8b0 ("vkr: validate
non-optional pointers")

This reverts 44448cf7 ("vkr: fix some null dereferences") except for the
check for args->streamCount in vkr_dispatch_vkExecuteCommandStreamsMESA,
which is unnecessary but good to have.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org>
Reviewed-by: Ryan Neph <ryanneph@google.com>
2 files changed