Revert "[media] mfd: Add header files and Kbuild plumbing for SI476x MFD core"

As requested by Samuel Ortiz <sameo@linux.intel.com>, revert
this patch.

This reverts commit 3f8ec5df.

Conflicts:
	drivers/mfd/Kconfig
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/mfd/Kconfig

@@ -977,19 +977,6 @@ config MFD_WL1273_CORE
 	  driver connects the radio-wl1273 V4L2 module and the wl1273
 	  audio codec.
 
-config MFD_SI476X_CORE
-	tristate "Support for Silicon Laboratories 4761/64/68 AM/FM radio."
-	depends on I2C
-	select MFD_CORE
-	select REGMAP_I2C
-	help
-	  This is the core driver for the SI476x series of AM/FM
-	  radio. This MFD driver connects the radio-si476x V4L2 module
-	  and the si476x audio codec.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called si476x-core.
-
 config MFD_OMAP_USB_HOST
 	bool "Support OMAP USBHS core and TLL driver"
 	depends on USB_EHCI_HCD_OMAP || USB_OHCI_HCD_OMAP3

drivers/mfd/Makefile

@@ -131,10 +131,6 @@ obj-$(CONFIG_MFD_JZ4740_ADC)	+= jz4740-adc.o
 obj-$(CONFIG_MFD_TPS6586X)	+= tps6586x.o
 obj-$(CONFIG_MFD_VX855)		+= vx855.o
 obj-$(CONFIG_MFD_WL1273_CORE)	+= wl1273-core.o
-
-si476x-core-y := si476x-cmd.o si476x-prop.o si476x-i2c.o
-obj-$(CONFIG_MFD_SI476X_CORE)	+= si476x-core.o
-
 obj-$(CONFIG_MFD_CS5535)	+= cs5535-mfd.o
 obj-$(CONFIG_MFD_OMAP_USB_HOST)	+= omap-usb-host.o omap-usb-tll.o
 obj-$(CONFIG_MFD_PM8921_CORE) 	+= pm8921-core.o