Hi
Run a repair and it will Fixed ...
I believe there is no remote uninstall.
Since if cannot remove the SEP , then you use Cleanwipe tool.
To get the Clean wipe tool you have to call the Symantec tech support.
you can also uninstall manually , you can use this link :
How to manually uninstall Symantec Endpoint Protection client from Windows 2000, XP and 2003, 32-bit Editions
http://www.symantec.com/docs/TECH102261
How to uninstall Symantec Endpoint Protection 12.1 client from Windows Vista, Windows 7, and Windows 2008 32 and 64-bit operating systems manually
http://www.symantec.com/docs/TECH161956