Fix or hide duration on online scheduler confirmation (wrong when second inspector added)

Users have reported that the duration shown on the online scheduler confirmation screen is hardcoded or wrong when a second inspector is added to the job—for example it shows 5 hours instead of 2.5 hours. Schedulers and clients see the wrong duration, which causes confusion and friction. Users are asking for the duration to be optional, toggleable, or removed so it doesn't mislead when the job has multiple inspectors.

Why it matters: Showing an incorrect duration at confirmation undermines trust and can lead to wrong expectations; fixing or making it optional keeps the flow accurate and less frustrating.