How do I delete my presets from my mobile devices?

Hi Akash,

Thank you.  I did and they are still there.

I had LR presets in my Lightroom > Develop Presets folder as well as my Lightroom CC > Develop Presets folder and my Camera Raw > Settings folder.  I deleted them all from the folders.  I also deleted the files from the cr_settings folder.  (**Someone mentioned that I should have deleted my presets directly from the Lightroom CC application on the desktop...but I had already deleted them from the folders directly**.)

I logged off my mobile devices and logged back in.  Even deleted the apps and restored them.  The presets remain.  On my mobile devices, I see the presets at the folder level.  I see that they can be deleted within the mobile device at the preset level through Manage Presets, but I have thousands that I want to get rid of, so that would take forever and being able to do so at the folder level would be infinitely less painful.

So, there are two things here:

- PC:  I removed all my presets as noted above on my desktop in both LR CC Classic and LR CC.  There are no presets visible in either my LR CC Classic or LR CC applications on the PC.

- Mobile devices: The presets remain on my mobile devices in their folder structure. Ideally they would match what's on my desktop, meaning no presets available, but they're persistent.  I could remove them from the device on a preset-by-preset level, but If I can't do it at the folder level, it will take an insane amount of time as I have thousands to delete.

Thoughts?