Supress some noise from the setup_robot output.
Supress some noise from the setup_robot output.

We're creating/deleting some things unconditionally. Hide errors/warnings that indicate already exists or already deleted respectively.

Fixes b/126347060

Change-Id: Ib67159eeb7b968eade1bc5b24d8110d3658e09ea
GitOrigin-RevId: 70789ac84eb75bfbe96c40276430859047c1fd76

googlecloudrobotics/core,googlecloudrobotics/core,googlecloudrobotics/core