Place the cursor before the page break line
Press Backspace
Place the cursor after the page break line
Press Delete
Go to Home
Click Show/Hide ΒΆ
Locate the page break
Select the page break
Press Delete
Open Find and Replace with Ctrl+H
Type ^m in Find what
Leave Replace with nothing
Click Replace All
Check for section breaks if the page break remains
Delete any manual page breaks in the document
Save the document