Log in to Facebook and switch to the Page you want to remove
Click your Page profile picture in the top right
Select Settings and privacy
Click Settings
Click Access and control
Click Deactivation and deletion
Select Delete Page
Click Continue
Follow the on-screen prompts to confirm
Enter your password if asked
Confirm the deletion
Keep in mind the Page may be recoverable for a limited time after deletion
If you want the Page hidden instead, choose Deactivate Page instead of deleting it