freedreno: drop mem2gmem/gmem2mem query stages

They weren't really used, and it gets somewhat more complicated to deal
with if batches are flushed asynchronously (on another thread).  So just
drop them, and move _query_set_state(NULL) call into batch (so it is not
happening on background thread).

Signed-off-by: Rob Clark <robdclark@gmail.com>
2 files changed