Optim: Remove editor-only per-decal Update callback
- They've all been consolidated to DeferredDecalRenrerer by tracking Undo history changes
This saves about 1.5ms during Update stage (in reality it's a bit less because of profiling overhead).
Tests: On Craggy ran around and validated I could still see footprints. Spawned them manually and tweaked settings and moved it's placement(ok) - trying to delete placed decal starts an exception loop(pre-existing bug, will fix next)