We have an old, infrequently updated site which has a custom module which we wrote that either needs to be updated or removed.
This module provides two blocks, and if those blocks aren't being used, we can remove the module. Otherwise, we have to update it to use new functionality, which we would like to avoid if it's not necessary.
I looked under the
admin/structure/block menu and discovered they are not placed in any regions.
Since I'm a back-end developer, and not really familiar with the theming and templating, I asked one of our front-end devs if the blocks might be used in any other places on the site. She looked through the pages and panelizer stuff, and discovered that the block is being used in a Mini Panel.
So now, the question is, is the mini-panel surfaced to end-users? Nobody presently at the organization is familiar with mini-panels and how they are used. Is there a way, either through the UI or perhaps looking through the tables, to find out of a particular mini-panel is being used?