I have found an old, unused list and noticed that its NewForm.aspx contains a link in the top right corner. The associated span element is named "PlaceHolderAdditionalPageHead". It contains the following markup:
<span class="die"> <a href="/[...]/[...]/Lists/Cascade">Registration</a> </span>
So I wanted to delete it but upon opening the form in SharePoint Designer 2013 I wasn't able to find any code that would resemble this.
Any pointers to where I should look?