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: Nicolas Ferre <nicolas.ferre@atmel.com>
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index bbeb451..006242c 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -75,7 +75,7 @@
 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