generally speaking, if I'm tracing an app, I want to see what's happening to
my driver, not what's happening to tc, as tc does rewriting of command streams
which can affect the operation of the driver
use GALLIUM_TRACE_TC for previous behavior
Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10362>