avia_template_builder_snippets

Hi,

In the Upcoming Events section, I can see a line called avia_template_builder_snippets.
I’ve no idea what this is or how to get rid of it.
I’ve actually used a little bit of code that I found in this forum to remove LOCATION, ORGANIZERS, COST, etc and I’m wondering if the avia_template_builder_snippets has something to do with that??

On a similar topic as it involves the above-mentioned code, how to I move the rest of the page to be more centrally aligned?
Code is here and the page URL below:

.single-tribe_events .tribe-events-event-meta,
.av-single-event-meta-bar-inner {
display: none;
border: none;
}

http://gsmparishes.redsquirreldesigns.com/event/st-williams-church/