The .dlv license file can be edited to remove any extra lines outside of the stanza. The structure should look similar to this:
<?xml version="1.0" encoding="UTF-8"?>
<LicenseFile>
<Licenses>
<License Generator="DLV" GeneratorVersion="3.0" Signature="the-very-long-signature-string">
<ProductName>DR Expansion Shelf</ProductName>
<LicenseNumber>123-456-789</LicenseNumber>
<Property Name="Service Tag">1234Tag</Property>
<ProductVersion>4</ProductVersion>
<LicenseType>Perpetual</LicenseType>
<Property Name="Expansion Capacity">36</Property>
</License>
</Licenses>
</LicenseFile>