Remove Default URL Param

I have a landing page with a form that collects email address only. The problem is when someone submits the form, their email address is added as a URL Parameter. This is a big problem for us because we work in education with students and having this display personal information violates Personally identifiable information (PII).

I found the URL Param tool, however any parameters you add are just added to the default, not replace it.
:rage::rage::rage:

“By default it will use the fields type you selected. If this is an email field ?email=jon.doe@gmail.com will populate the default value of this input field.”