bouledeneigeofff You mean you installed Google Chrome from Play Store and wish to get rid of the Trichromelibrary that gets installed as part of that?
If you have installed Google Chrome, then there is no way other than using adb, to my knowledge to uninstall
You should be really careful.
You could easily uninstall the other trichrome library @flawedworld mentioned above and break very basic functionality.
The one you should NOT do anything with is