WordPress reducing number of Featured Images

hello there, I have a website that run multiple cron jobs in wordpress and generate posts from multiple resources with images and description.
I am using hostgator shared hosting, and thier sharing hosting plans come with innode limits (innodes are simply limit of files per cpanel).
My innode limit is 250k and now its reach at 240k if exceed 250k my account shall suspend from Hostagator.
All i am trying to ask, my large website has about 110k+ features images, how can i reduce the number of feature images from hosting without any interruption with website.

[ No bumping please. ]