watchdog: ar7_wdt: remove driver to prepare for platform removal

AR7 is going to be removed from the Kernel, so remove its watchdog
support. This allows us to remove the platform because this driver
includes a platform specific header.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

Author: Wolfram Sang

drivers/watchdog/Kconfig

@@ -1768,12 +1768,6 @@ config SIBYTE_WDOG
 	  To compile this driver as a loadable module, choose M here.
 	  The module will be called sb_wdog.
 
-config AR7_WDT
-	tristate "TI AR7 Watchdog Timer"
-	depends on AR7 || (MIPS && 32BIT && COMPILE_TEST)
-	help
-	  Hardware driver for the TI AR7 Watchdog Timer.
-
 config TXX9_WDT
 	tristate "Toshiba TXx9 Watchdog Timer"
 	depends on CPU_TX49XX || (MIPS && COMPILE_TEST)

drivers/watchdog/Makefile

@@ -168,7 +168,6 @@ obj-$(CONFIG_INDYDOG) += indydog.o
 obj-$(CONFIG_JZ4740_WDT) += jz4740_wdt.o
 obj-$(CONFIG_WDT_MTX1) += mtx-1_wdt.o
 obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o
-obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
 obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
 obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o
 octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o