media: sir_ir: remove broken driver

This driver is a port of the lirc_sir driver to rc-core. However, for
this driver I could not find any hardware to test, so it was done without
testing. This is a mistake.

There are clear bugs in the code. For example the two arguments
to ktime_us_delta() are reversed, which means the result is garbage.

The driver has been in the kernel for four years, and noone has ever
reported an issue. So, remove this driver.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/rc/Kconfig

@@ -453,14 +453,6 @@ config IR_SERIAL_TRANSMITTER
 	help
 	   Serial Port Transmitter support
 
-config IR_SIR
-	tristate "Built-in SIR IrDA port"
-	help
-	   Say Y if you want to use a IrDA SIR port Transceivers.
-
-	   To compile this driver as a module, choose M here: the module will
-	   be called sir-ir.
-
 config RC_XBOX_DVD
 	tristate "Xbox DVD Movie Playback Kit"
 	depends on USB

drivers/media/rc/Makefile

@@ -47,7 +47,6 @@ obj-$(CONFIG_RC_ST) += st_rc.o
 obj-$(CONFIG_IR_SUNXI) += sunxi-cir.o
 obj-$(CONFIG_IR_IMG) += img-ir/
 obj-$(CONFIG_IR_SERIAL) += serial_ir.o
-obj-$(CONFIG_IR_SIR) += sir_ir.o
 obj-$(CONFIG_IR_MTK) += mtk-cir.o
 obj-$(CONFIG_RC_XBOX_DVD) += xbox_remote.o
 obj-$(CONFIG_IR_TOY) += ir_toy.o