The movement to your IRA if the IRA that you inherited from your wife can be done by either reportable rollover or by nonreportable trustee-to-trustee transfer, with trustee-to-trustee transfer being far preferable since it avoids any concern regarding the one-rollover-per-year limitation on rollovers. Since the trustee of both accounts was Fidelity, it would be extremely unusual for them to do this by distribution and rollover, so you should except this to have been done by nonreportable trustee-to-trustee transfer, which Fidelity appears to have confirmed, and there is nothing to to report of this transfer on your tax return.
There are no RMDs involved since your wife was only age 54, so I don't know the purpose of VictorW9's post.
