Form 1040 is your tax return. This year all tax returns are Form 1040's due to tax reform (the other forms 1040A and 1040EZ have been eliminated).
If you really meant that you have erroneous Form W-2s in your return, then the easiest way to remove them since it shows you are using the desktop program is to switch to Forms Mode (should be an icon at the top of your screen) and find the Form W2s on the left-hand side of your screen. Click on the Form and at the bottom should be an option to Remove the Form.
