diff --git a/arch/sh/configs/landisk_defconfig b/arch/sh/configs/landisk_defconfig
index f52db125432f6c6bf0b7fd2d47be88d398dcbc8a..38f934ab50c76b7f12308255e25b8ab027378c62 100644
--- a/arch/sh/configs/landisk_defconfig
+++ b/arch/sh/configs/landisk_defconfig
@@ -226,7 +226,6 @@ CONFIG_CPU_HAS_PTEA=y
 #
 CONFIG_SH_TMU=y
 CONFIG_SH_TIMER_IRQ=16
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_SH_PCLK_FREQ=33333333
 
 #
diff --git a/arch/sh/configs/lboxre2_defconfig b/arch/sh/configs/lboxre2_defconfig
index 9fa66d92a4e75db47a6432cacac5e5b524818f55..b68b6cdbb78f06d940024cf48a1885d51a258ad8 100644
--- a/arch/sh/configs/lboxre2_defconfig
+++ b/arch/sh/configs/lboxre2_defconfig
@@ -231,7 +231,6 @@ CONFIG_CPU_HAS_PTEA=y
 #
 CONFIG_SH_TMU=y
 CONFIG_SH_TIMER_IRQ=16
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_SH_PCLK_FREQ=40000000
 
 #
diff --git a/arch/sh/configs/se7705_defconfig b/arch/sh/configs/se7705_defconfig
index 84717d854867c4d6eaeb4ab415d19b633872c233..490dcbc2ce330af9262b8e8b55d94e0a3aacece8 100644
--- a/arch/sh/configs/se7705_defconfig
+++ b/arch/sh/configs/se7705_defconfig
@@ -239,7 +239,6 @@ CONFIG_CPU_HAS_SR_RB=y
 #
 CONFIG_SH_TMU=y
 CONFIG_SH_TIMER_IRQ=16
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_SH_PCLK_FREQ=33333333
 
 #
diff --git a/arch/sh/configs/se7712_defconfig b/arch/sh/configs/se7712_defconfig
index 240a1cef69aacc3cdcdfe5aa30113c3603276716..2dd83af988f065419b975b6fa70c0089b2816e8f 100644
--- a/arch/sh/configs/se7712_defconfig
+++ b/arch/sh/configs/se7712_defconfig
@@ -236,7 +236,6 @@ CONFIG_CPU_HAS_SR_RB=y
 #
 CONFIG_SH_TMU=y
 CONFIG_SH_TIMER_IRQ=16
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_SH_PCLK_FREQ=66666666
 
 #
diff --git a/arch/sh/configs/se7750_defconfig b/arch/sh/configs/se7750_defconfig
index c60b6fd4fc421cb9fbbb19c68532c62349b36387..167786f9a9bd1687fddbe50ef47e1679bcc63668 100644
--- a/arch/sh/configs/se7750_defconfig
+++ b/arch/sh/configs/se7750_defconfig
@@ -235,7 +235,6 @@ CONFIG_CPU_HAS_PTEA=y
 #
 CONFIG_SH_TMU=y
 CONFIG_SH_TIMER_IRQ=16
-# CONFIG_NO_IDLE_HZ is not set
 CONFIG_SH_PCLK_FREQ=33333333
 
 #