If your original return shows you took the $6,000 IRA deduction and a $6000 conversion on 1040 Line 4b,
you don't have to amend, the tax is the same and the effect is the same as your
amended return with no $6,000 deduction and a no-tax IRA conversion (Line 4b = 0).
this is the only legitimate way the tax can be unchanging.
If your original return does not look like that, then your original filing was incorrect and you definitely should amend.
@brian-perrigino
