How to disable scorecardresearch.com things with sharethis option?

I realised that our website try to downloading file from scorecardresearch.com; cause of sharethis option. Even I disable that social share, it request same files (also requires other social share files too)

I don't want to be secret part of that share this and their partners; so how can i completely remove that files from theme itself? Because mainly that files not come and make the site slow!

Thanks a lot

KA