Can I remove the Child car seat credit from my tax return? I do not want to file by mail and I no longer have the restraint invoice for proof anyways.

Yes, but to clarify, which state are you filing for?

You need to go back to that section in the State portion of TurboTax to adjust your entry for the car seat purchase. 

You can also look for a worksheet for that credit and delete it from your return. 

Click Tools then Tax Tools on the left side bar

Click "View my 1040" on the screen

Scroll through the forms and delete the credit