Filed form 8606 in error

I have just e-filed our return for 2019.  I didn't make any nondeductible contribution to any IRA in 2019.  I was checking if I'm eligible in making IRA contribution and didn't realized that the form was created until I saw it when printing the tax forms for our records after submitting the return for e-filing.

Please help to advise on how to correct this.  Should I just send a letter to the IRS to explain my mistake?When should be a good time to send the letter if I have just e-filed my tax.

Thank you for your help.