[IRDA]: Kill old irtty driver, as suggested by Jean and Jeff.

drivers/net/irda/Kconfig

@@ -68,20 +68,6 @@ config TEKRAM_DONGLE
 
 comment "Old SIR device drivers"
 
-config IRTTY_OLD
-	tristate "Old IrTTY (broken)"
-	depends on IRDA && EXPERIMENTAL
-	help
-	  Say Y here if you want to build support for the IrTTY line
-	  discipline.  If you want to compile it as a module (irtty), say M
-	  here and read <file:Documentation/modules.txt>.  IrTTY makes it
-	  possible to use Linux's own serial driver for all IrDA ports that
-	  are 16550 compatible.  Most IrDA chips are 16550 compatible so you
-	  should probably say Y to this option.  Using IrTTY will however
-	  limit the speed of the connection to 115200 bps (IrDA SIR mode).
-
-	  If unsure, say N.
-
 config IRPORT_SIR
 	tristate "IrPORT (IrDA serial driver)"
 	depends on IRDA

drivers/net/irda/Makefile

@@ -5,8 +5,7 @@
 # Rewritten to use lists instead of if-statements.
 #
 
-# Old SIR drivers (irtty is broken)
-obj-$(CONFIG_IRTTY_OLD)		+= irtty.o
+# Old SIR drivers 
 obj-$(CONFIG_IRPORT_SIR)	+= 		irport.o
 # FIR drivers
 obj-$(CONFIG_USB_IRDA)		+= irda-usb.o