BF: Resetting to command mode on exit is no longer needed and can cau…

…se errors

psychopy_bbtk/tpad.py

@@ -333,15 +333,6 @@ def __init__(
         )
         # reset timer
         self.resetTimer()
-
-    def __del__(self):
-        self.close()
-
-    def close(self):
-        # set mode to 0 on exit
-        self.setMode(0)
-        # close
-        sd.SerialDevice.close(self)
 
     @staticmethod
     def getAvailableDevices():