What is localtest.properties used for?

src/test/resources/localtest.properties

jira.protocol = http
jira.host = localhost
jira.port = 2990
jira.context = /jira
jira.edition = all

jira.xml.data.location = src/test/xml

The values aren’t being used: integration test’s refapp uses my local machine name (not locahost and not 127.0.0.1), port 5990, and context path of /refapp.

What is this used for? Is it some old-school, deprecated file that can be deleted?