diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 853cbc971cdf1e0c4efa6425becc3d2043b45a87..0917fc3f39c012e2c28109b69b76a359b417c811 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -150,9 +150,6 @@ config ARCH_HAS_ILOG2_U32
 config ARCH_HAS_ILOG2_U64
 	def_bool n
 
-config ARCH_HAS_DEFAULT_IDLE
-	def_bool y
-
 config NO_IOPORT
 	def_bool !PCI
 	depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 422a72b20f485b0d799d498c4bc21bcce38118b9..734152d85fd0f23b24c70e10d83433ae77980274 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -189,9 +189,6 @@ config GENERIC_CALIBRATE_DELAY
 config ARCH_HAS_CPU_RELAX
 	def_bool y
 
-config ARCH_HAS_DEFAULT_IDLE
-	def_bool y
-
 config ARCH_HAS_CACHE_LINE_SIZE
 	def_bool y