How do I remove oldServices?

To turn off built-in Services, go to System Preferences > Keyboard > Shortcuts, and select Services on the left; clear the checkboxes next to unwanted items. Thirdparty Services tend to be inside apps or the Services folders in Library folders. Generate a list in a text file, complete with paths to them, by entering this in Terminal: /System/Library/ CoreServices/pbs -dump_pboard> ~/Desktop/srvcs.txt.