sh: drop unused Kconfig symbol

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index ff9177c..2d39594 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -101,10 +101,6 @@
 	def_bool y
 	depends on SMP && PREEMPT
 
-config SYS_SUPPORTS_PM
-	bool
-	depends on !SMP
-
 config ARCH_SUSPEND_POSSIBLE
 	def_bool n