For some reason there is a new link on my quicklinks called “Site Contents”.Â
Solutions I’ve tried (and failed):
1)When I go to navigation on site settings, it does not show up there so I can’t hide it or delete it.Â
2) using Navigation Elements to get rid of all the quicklinks won’t be helpful because all the quicklinks were gone except “Site Contents”
3) Entering this script gets rid of all of quicklinks even Site Contents.  <style>#sideNavBox { display:none; }</style>  Only problem is I want to keep my quicklinks.Â
Any suggestions?
Chanakya’s answers are your only options.
However, my question is “why”. Site Contents is the place your employees who interact with SharePoint should be able to find lists/libraries and such that may or may not be in your navigation. It’s *supposed* to be there 🙂
