pan/decode: Drop scratchpad size dump

It fails if the scratchpad isn't actually mapped from pandecode's
perspective, and isn't useful information to us at this point.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6476>
1 file changed