It seems this information is not garbage and can help with the variables view when checking system framework calls. However, this seems more related to debugging for the engineers at Apple and seems to have been logged as an xcode 8 issue. No idea when this will be resolved.
I also checked (started) the key binding with a "show" and "display" filters but none are relative to this. Below is apple's note:
• Xcode Debug Console shows extra logging from system frameworks when debugging applications in the Simulator. (27331147, 26652255).