It's a moot point.

Meaning

The point is irrelevant or inconsequential.

Examples

• John: 'Should we invest in that new technology?'
• Alice: '<b>It's a moot point</b>; the project has already been cancelled.'
• John: '<b>It's a moot point</b> now that the project has been shelved.'
• Alice: 'The question of funding is still unresolved.'