Open the PDF in a PDF editor
Select the page thumbnails panel
Click the page you want to remove
Choose Delete or Remove Page
Save the PDF
If using a browser or viewer, print the PDF and exclude the unwanted page
If using Adobe Acrobat, use Organize Pages and delete the selected page
If using Preview on Mac, show thumbnails, select the page, and press Delete
If using an online PDF tool, upload the file, delete the page, and download the updated PDF