media: cros-codecs: remove unneeded type suffixes
media: cros-codecs: remove unneeded type suffixes

Indices are already usize implicitly.

BUG=b:214478588
TEST=cargo test --features vaapi -p cros-codecs

Change-Id: I555a4feb5669906c73004e598744311e3351090a
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4005488
Reviewed-by: Keiichi Watanabe <815e4e8f7c92a23424d7c3f51ead622bcedbc720@chromium.org>
Reviewed-by: Daniel Almeida <b7e44e46593ea508f325d590984d4c17e6f02765@collabora.corp-partner.google.com>
Commit-Queue: Alexandre Courbot <301cd6a3ea50a894b4b51e385c5eb12b9a4ffc0c@chromium.org>

google/crosvm,google/crosvm,google/crosvm,google/crosvm