ARM: at91/Kconfig: remove unused config options

When removing old board !DT support, several Kconfig options were deleted.
Propagate this removal to drivers Kconfig files.
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>

drivers/misc/Kconfig

@@ -75,7 +75,7 @@ config ATMEL_TCB_CLKSRC
 config ATMEL_TCB_CLKSRC_BLOCK
 	int
 	depends on ATMEL_TCB_CLKSRC
-	prompt "TC Block" if ARCH_AT91RM9200 || ARCH_AT91SAM9260 || CPU_AT32AP700X
+	prompt "TC Block" if CPU_AT32AP700X
 	default 0
 	range 0 1
 	help

drivers/rtc/Kconfig

@@ -1124,7 +1124,6 @@ config RTC_DRV_AT91SAM9_RTT
 	int
 	range 0 1
 	default 0
-	prompt "RTT module Number" if ARCH_AT91SAM9263
 	depends on RTC_DRV_AT91SAM9
 	help
 	  More than one RTT module is available. You can choose which
@@ -1133,8 +1132,7 @@ config RTC_DRV_AT91SAM9_RTT
 
 config RTC_DRV_AT91SAM9_GPBR
 	int
-	range 0 3 if !ARCH_AT91SAM9263
-	range 0 15 if ARCH_AT91SAM9263
+	range 0 3
 	default 0
 	prompt "Backup Register Number"
 	depends on RTC_DRV_AT91SAM9

drivers/video/backlight/Kconfig

@@ -168,7 +168,6 @@ if BACKLIGHT_CLASS_DEVICE
 config BACKLIGHT_ATMEL_LCDC
 	bool "Atmel LCDC Contrast-as-Backlight control"
 	depends on FB_ATMEL
-	default y if MACH_AT91SAM9261EK || MACH_AT91SAM9G10EK || MACH_AT91SAM9263EK
 	help
 	  This provides a backlight control internal to the Atmel LCDC
 	  driver.  If the LCD "contrast control" on your board is wired