How to delete a custom page rule in Cloudflare
To delete a Cloudflare custom page rule log into your Cloudflare account. If you forgot your password you can request a password reset here.
After you log in, if you have multiple websites in your Cloudflare account, select the desired website from the top of the page.
Click Page Rules in the menu at the top. Then click the gear icon next to the page rule you want to delete and click Delete rule.