Below are the simple steps to Remove Links in WordPress
Step 1− Click on Pages ->All Pages as shown in the below screen.
Step 2− You can see the list of pages. When the cursor hovers on the Page page, then a few options gets displayed. Click on the Edit button as shown in the below screen.
Step 3− Select the word which you had already linked i.e.Contents, and click on the Remove Link Symbol as seen in the below screen.
Step 4− When you hover on the word Contents, there will be no tooltip of the existing URL. The below screenshot shows that the link has been deleted.