Hoe do I remove the "Self-Employment income and expenses" from my income and expenses?

See this TurboTax support FAQ for removing a Schedule C that transferred to the 2022 tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/small-business-processes/delete-prior-year-schedule-c-business-transferred/L9omDG3e2_US_en_US?uid=ld1r7ekh

There are a couple of methods to delete a Schedule C that is showing on your current return. As @DoninGA referred to in the TurboTax Help article, locate the self-employment list in the Wages & Income section. Once you are there, locate the specific Schedule C that you want to delete and click the trash can on the right.

Another method to delete the form is to go to the left on your TurboTax screen, scroll down a bit and click on tools, then click on tools again; and lastly, click on delete a form. It will list all the schedules and forms on your return; locate Schedule C, and click delete. You should also delete the worksheet link right under it.

The ultimate method to delete the form would be to click on Clear and Start Over. You may prefer not to do that if you have already entered your data.

For more information please see How do I clear and start over in TurboTax Online?