Removes the process entry for the passed UUID obtained from a prior call of fin.desktop.System.launchExternalProcess().
Example
fin.desktop.System.launchExternalProcess("notepad", "", function (result) {
console.log("Result UUID is " + result.uuid);
//release it.
fin.desktop.System.releaseExternalProcess(result.uuid, function () {
console.log("Process has been unmapped!");
}, function (reason) {
console.log("failure: " + reason);
});
});