Temporal: Adjust tests for removal of options parameter from Temporal.Duration.p.add/subtract

[ptomato]

This corresponds to a yet-to-be-presented potential normative change, to simplify the Temporal proposal.

This PR is split into two commits, for ease of review. The first one is just a blanket removal of everything that tested the options parameter, and doesn't need to be reviewed very attentively. The second commit contains the actual tests.

See tc39/proposal-temporal#2825