[S390] Remove unused GENERIC_BUST_SPINLOCK from Kconfig.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 245b81b..5b04c40 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -33,9 +33,6 @@
 config GENERIC_TIME
 	def_bool y
 
-config GENERIC_BUST_SPINLOCK
-	bool
-
 mainmenu "Linux Kernel Configuration"
 
 config S390