The removal of Symantec Endpoint Protection remotely seems to be thorn in the side many techs.
I don't know why but Symantec doesn't offer a removal ability via the managed console.
Do get there utility you must open a support case with them, all around pain if you must retire a computer or if you no longer use SEP for AV protection on your environment.
Well here goes, I wrote simple script using PSEXEC and WMIC to uninstall SEP from a machine remotely, you must have admin access to it.
Any questions please feel free to contact me.