TrigSimTransforms: delete legacy trigger simulation transform
This transform (simulating the trigger on old bytestream, TWiki doc) is currently not
used to simulate the trigger. Instead we are using RDOtoRDOTrigger to
simulate past data-taking periods.
Deleting this package in master to avoid confusion and avoid people spending time trying to migrate code in it. If we decide to resurrect the "legacy simulation project" it can be restored from git history.
@bernius @salnikov @wiedenma @mark @smh, please object if I have overlooked a use-case.