trace.pl: Put single context at single vertical slot

Turn off timeline stacking in favour of putting all the boxes belonging to
a single context at the same vertical slot.

Also remove the custom sorting function in favour of correctly assigning
the subgroup id's and order which greatly speeds up the library operations.

And finally remove the 'Toggle stacking' button which never worked.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>

0 files changed, 0 insertions, 0 deletions