NAME
	IND_REMHANDLER -- Remove an input handler from the device

   FUNCTION
	Remove a function previously added to the list of handler
	functions.

   IO REQUEST
	io_Message	mn_ReplyPort set
	io_Device	preset by OpenDevice
	io_Unit		preset by OpenDevice
	io_Command	IND_REMHANDLER
	io_Data		a pointer to the interrupt structure.

   NOTES
	This command is not immediate