Which of the following is a procedural step related to trial?

Confirming the trial date with the court is a crucial procedural step in the trial process. This step ensures that all parties involved are aware of when the trial is scheduled to take place, allowing for proper preparation and availability of resources, including witnesses and legal counsel. This confirmation helps avoid any conflicts or scheduling issues that could delay the trial. It's an essential administrative function that supports the smooth progression of legal proceedings.

The other options do not represent appropriate procedural steps within the context of a trial. Setting down for judgment is typically done after the conclusion of a trial or hearing, not as a pre-trial action. Skipping witness summons would undermine the trial's integrity, as witness testimony is vital for establishing facts. Withdrawing all claims would not pertain to an active trial process but rather indicate an intention to abandon a legal action altogether, which is fundamentally different from procedural steps taken in preparation for a trial.