It's a moot point.

Meaning

It's irrelevant or unnecessary to discuss.

Examples

• John: 'Should we continue with the old system or switch to the new one?'<br>
• Alice: '<b>It's a moot point</b>; the old system is being phased out regardless.'
• John: '<b>It's a moot point</b>. Both are crucial for this project.'
• Alice: 'We need to decide whether to prioritize speed or accuracy.'<br>