Schemes
Schemes lists all the schemes and their handlers that are registered via Launch Services on your system.
![Schemes](/images/Schemes.png)
Unregistering an entry removes that app from launch services. You could do this manually by using lsregister
. Example:
/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -u /path/to/your.app