use /var/tmp in all cases for socket

bitmask/main.go

@@ -102,10 +102,7 @@ func initCore() (*zmq4.Socket, error) {
 		return nil, err
 	}
 
-	endpointPwd := "/tmp"
-	if os.Getenv("SNAP") != "" {
-        endpointPwd = "/var/tmp"
-	}
+	endpointPwd := "/var/tmp"
 	err = socket.Connect(fmt.Sprintf(coreEndpoint, endpointPwd))
 	return socket, err
 }