Cache problem.Varnish headers are being served

I am having cache problems with 100% miss using the litespeed plugin for Xenforo. I am seeing Varnish headers but I can’t find any mention of varnish installed. Here is the header output. How do I remove / disable varnish?
status 200
accept-ranges bytes
age 0
cache-control max-age=0, must-revalidate, no-cache, no-store
content-encoding gzip
content-type text/html; charset=utf-8
date Mon, 10 Jun 2019 05:06:23 GMT
display pub_site_sol
expires Sun, 09 Jun 2019 05:06:23 GMT
last-modified Mon, 10 Jun 2019 05:06:20 GMT
pagespeed off
response 200
server nginx/1.14.0
vary Accept-Encoding,X-APP-JSON
via 1.1 varnish (Varnish/6.0)
via 1.1 varnish (Varnish/6.0)
x-content-type-options nosniff
x-frame-options SAMEORIGIN
x-litespeed-cache miss
x-middleton-display pub_site_sol
x-middleton-response 200
x-sol pub_site
x-varnish 415045464
x-varnish 371888411

Are you using some CDN or varnish cache plugin, you should not see varnish cache as OpenLiteSpeed or any of our plugins does not emit varnish headers, there must be some CDN or plugin you have installed.